Performance information

• Demonstration of Thermal Property Determination for a Suspended Wire Using 3ω Method Acquired by a High buffered Multimeter Applying a Discrete Fourier Transformation and a Window Function　　　　　　　　　　　　　　　
  Takeshi Takada; Yasuhiro Hasegawa
  International Journal of Thermophysics, Sep. 2024, [Reviewed], [Corresponding]
  Scientific journal
  DOI：https://doi.org/10.1007/s10765-024-03397-1
  DOI ID：10.1007/s10765-024-03397-1, ORCID：165752608
• Comprehensive assessment of thermoelectric properties in modules: Time-domain impedance spectroscopy considering heat leakage via attached lead wires　　　　　　　　　　　　　　　
  Kotoko Kodama; Yasuhiro Hasegawa
  Journal of Applied Physics, May 2024, [Reviewed], [Corresponding]
  Scientific journal
  DOI：https://doi.org/10.1063/5.0196012
  DOI ID：10.1063/5.0196012, ORCID：159166398
• Temperature profile of the Thomson-effect-induced heat release/absorption in junctionless single conductors
  Takahiro Chiba; Ryo Iguchi; Takashi Komine; Yasuhiro Hasegawa; Ken-ichi Uchida
  Japanese Journal of Applied Physics, Mar. 2023, [Reviewed]
  Abstract
  
  The Thomson effect induces heat release or absorption under the simultaneous application of a charge current and a temperature gradient to conductors. Here, we theoretically investigate the temperature profile due to the Thomson-effect-induced heat release/absorption in junctionless single conductors which can be a simple temperature modulator. We also perform analysis of the temperature profile for realistic conductors. As a result, we find that, for a conductor with a large Thomson coefficient, the temperature derivative of the Seebeck coefficient, the Thomson-effect-induced heat absorption overcomes the Joule heating, resulting in current-induced cooling in the bulk region. We also elucidate that a feedback effect of the Thomson effect stabilizes the system temperature to one-side of the heat bath, which reflects the fact that the Thomson effect is dependent on the position and proportional to the local temperature gradient. This work will be the basis for thermal management utilizing the Thomson effect.
  IOP Publishing, Scientific journal
  DOI：https://doi.org/10.35848/1347-4065/acc3e6
  DOI ID：10.35848/1347-4065/acc3e6, ISSN：0021-4922, eISSN：1347-4065
• Measuring temperature dependence of dimensionless figure of merit of a thermoelectric module using time-domain impedance spectroscopy　　　　　　　　　　　　　　　
  Yasuhiro Hasegawa; Mai Takeuchi
  Review of Scientific Instruments, Jan. 2023, [Reviewed], [Lead, Corresponding]
  Scientific journal
  DOI：https://doi.org/10.1063/5.0124602
  DOI ID：10.1063/5.0124602, ORCID：125808203
• Proposal of time domain impedance spectroscopy to determine precise dimensionless figure of merit for thermoelectric modules within minutes　　　　　　　　　　　　　　　
  Yasuhiro Hasegawa; Mai Takeuchi
  Scientific Reports, Volume：12, Number：1, Jul. 2022, [Reviewed], [Lead, Corresponding]
  AbstractSeveral techniques exist that use a thermoelectric element (TE) or module (TM) to measure precise dimensionless figure of merit (zT), both qualitatively and quantitatively. The techniques can be applied using both alternating (AC) and direct current (DC). Herein, the transient Harman (TH) and impedance spectroscopy (IS) methods were investigated as direct zT measurement techniques using identical TM, which showed that zT at 300 K was 0.767 and 0.811 within several minutes and several hours, respectively. The zT values differed despite the use of the same TM, which revealed that measuring ohmic resistance using DC and pulse DC is potentially misleading owing to the influence of Peltier heat on current flow. In this study, time domain impedance spectroscopy (TDIS) was proposed as a new technique to measure zT using proper DC and AC. zT obtained using TDIS was 0.811 within several minutes using the time and frequency domains, and was perfectly consistent with the result of the IS method. In conclusion, the TDIS is highly appropriate in estimating zT directly using only proper electrometric measurements, and without any heat measurements.
  Springer Science and Business Media {LLC}, English, Scientific journal
  DOI：https://doi.org/10.1038/s41598-022-15947-4
  DOI ID：10.1038/s41598-022-15947-4, ISSN：2045-2322, ORCID：115982983
• Analysis of temperature dependencies of transport coefficients for a single-crystal bismuth wire with a 1.90-μm diameter　　　　　　　　　　　　　　　
  Mioko Otsuka; Hiroyuki Morita; Taichi Arisaka; Yasuhiro Hasegawa
  Journal of Applied Physics, Jun. 2022, [Reviewed], [Corresponding]
  Scientific journal
  DOI：https://doi.org/10.1063/5.0094649
  DOI ID：10.1063/5.0094649, ORCID：113958813
• Temperature dependence of resistivity and temperature coefficient of a single-crystal bismuth nanowire based on the varying scattering mechanism　　　　　　　　　　　　　　　
  Yasuhiro Hasegawa; Daisuke Yamashita
  Japanese Journal of Applied Physics, Jun. 2022, [Reviewed], [Corresponding]
  {IOP} Publishing, Scientific journal
  DOI：https://doi.org/10.35848/1347-4065/ac646c
  DOI ID：10.35848/1347-4065/ac646c, ORCID：111297315
• Observing variations in carrier-scattering mechanisms of polycrystalline bismuth through its temperature-dependent properties　　　　　　　　　　　　　　　
  Shinya Hirabayashi; Yasuhiro Hasegawa
  Japanese Journal of Applied Physics, Volume：60, Number：11, Nov. 2021, [Reviewed], [Corresponding]
  IOP Publishing Ltd, English, Scientific journal
  DOI：https://doi.org/10.35848/1347-4065/ac21dc
  DOI ID：10.35848/1347-4065/ac21dc, ISSN：1347-4065, SCOPUS ID：85118643890
• Influence of contact resistance and heat leakage in the determination of the dimensionless figure of merit via duo-impedance spectroscopy　　　　　　　　　　　　　　　
  Shinya Hirabayashi; Yasuhiro Hasegawa
  Japanese Journal of Applied Physics, Volume：60, Number：10, Oct. 2021, [Reviewed], [Corresponding]
  IOP Publishing Ltd, English, Scientific journal
  DOI：https://doi.org/10.35848/1347-4065/ac1f48
  DOI ID：10.35848/1347-4065/ac1f48, ISSN：1347-4065, SCOPUS ID：85115995234
• Determination of dimensionless figure of merit in time and frequency domains　　　　　　　　　　　　　　　
  Yasuhiro Hasegawa; Mai Takeuchi
  Review of Scientific Instruments, Volume：92, Number：8, Aug. 2021, [Reviewed], [Corresponding]
  American Institute of Physics Inc., English, Scientific journal
  DOI：https://doi.org/10.1063/5.0045108
  DOI ID：10.1063/5.0045108, ISSN：1089-7623, PubMed ID：34470373, SCOPUS ID：85111902314
• Evaluation of a thermoelectric material using duo-frequency impedance spectroscopy method　　　　　　　　　　　　　　　
  Mioko Otsuka; Taichi Arisaka; Yasuhiro Hasegawa
  Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Volume：261, Nov. 2020, [Reviewed], [Corresponding]
  Elsevier Ltd, English, Scientific journal
  DOI：https://doi.org/10.1016/j.mseb.2020.114620
  DOI ID：10.1016/j.mseb.2020.114620, ISSN：0921-5107, SCOPUS ID：85088920256
• Dimensionless figure of merit of constantan estimated using impedance spectroscopy　　　　　　　　　　　　　　　
  Ryo Shinozaki; Shinya Hirabayashi; Yasuhiro Hasegawa
  Applied Physics Express, Volume：13, Number：10, Oct. 2020, [Reviewed], [Corresponding]
  IOP Publishing Ltd, English, Scientific journal
  DOI：https://doi.org/10.35848/1882-0786/abb285
  DOI ID：10.35848/1882-0786/abb285, ISSN：1882-0786, SCOPUS ID：85091705922
• Temperature dependence of carrier scattering in polycrystalline bismuth　　　　　　　　　　　　　　　
  Taichi Arisaka; Mioko Otsuka; Masayuki Tokitani; Yasuhiro Hasegawa
  Journal of Applied Physics, Volume：126, Number：8, Aug. 2019, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.5110254
  DOI ID：10.1063/1.5110254, ISSN：0021-8979, eISSN：1089-7550, ORCID：60805755, Web of Science ID：WOS:000483884600046
• Measurement of thermal conductivity and specific heat by impedance spectroscopy of Bi2Te3 thermoelectric element
  Taichi Arisaka; Mioko Otsuka; Yasuhiro Hasegawa
  Review of Scientific Instruments, Apr. 2019, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.1063/1.5079832
  DOI ID：10.1063/1.5079832, ORCID：56455783
• Simultaneous transport coefficient measurements for an individual bismuth wire embedded in a quartz template applying nano-fabrication
  Hiroyuki Morita; Taichi Arisaka; Mioko Otsuka; Yasuhiro Hasegawa
  Applied Physics Express, Jan. 2019, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.7567/1882-0786/aaf629
  DOI ID：10.7567/1882-0786/aaf629, ORCID：52233303
• Temperature dependence of dimensionless figure of merit of a thermoelectric module estimated by impedance spectroscopy
  Yasuhiro Hasegawa; Mioko Otsuka
  AIP Advances, Volume：8, Number：7, First page：075222, Last page：075222, Jul. 2018, [Reviewed]
  {AIP} Publishing, Scientific journal
  DOI：https://doi.org/10.1063/1.5040181
  DOI ID：10.1063/1.5040181, ORCID：49697722
• Investigation of carrier scattering process in polycrystalline bulk bismuth at 300 K
  Taichi Arisaka; Mioko Otsuka; Yasuhiro Hasegawa
  Journal of Applied Physics, Volume：123, Number：23, First page：235107, Jun. 2018, [Reviewed]
  American Institute of Physics Inc., English, Scientific journal
  DOI：https://doi.org/10.1063/1.5032137
  DOI ID：10.1063/1.5032137, ISSN：1089-7550, ORCID：49697721, SCOPUS ID：85048938293
• Dimensionless figure of merit and its efficiency estimation for transient response of thermoelectric module based on impedance spectroscopy　　　　　　　　　　　　　　　
  Mioko Otsuka; Yasuhiro Hasegawa; Taichi Arisaka; Ryo Shinozaki; Hiroyuki Morita
  APPLIED PHYSICS EXPRESS, Volume：10, Number：11, First page：115801, Nov. 2017, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.7567/APEX.10.115801
  DOI ID：10.7567/APEX.10.115801, ISSN：1882-0778, eISSN：1882-0786, Web of Science ID：WOS:000413839200001
• Fabrication of a Nanoscale Electrical Contact on a Bismuth Nanowire Encapsulated in a Quartz Template by Using FIB-SEM　　　　　　　　　　　　　　　
  Masayuki Murata; Atsushi Yamamoto; Yasuhiro Hasegawa; Takashi Komine
  JOURNAL OF ELECTRONIC MATERIALS, Volume：46, Number：5, First page：2782, Last page：2789, May 2017, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-016-4968-5
  DOI ID：10.1007/s11664-016-4968-5, ISSN：0361-5235, eISSN：1543-186X, Web of Science ID：WOS:000398937900033
• Estimation of Phonon and Carrier Thermal Conductivities for Bulk Thermoelectric Materials Using Transport Properties　　　　　　　　　　　　　　　
  Mioko Otsuka; Ryoei Homma; Yasuhiro Hasegawa
  JOURNAL OF ELECTRONIC MATERIALS, Volume：46, Number：5, First page：2752, Last page：2764, May 2017, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-016-4955-x
  DOI ID：10.1007/s11664-016-4955-x, ISSN：0361-5235, eISSN：1543-186X, Web of Science ID：WOS:000398937900029
• Temperature Dependence of the Resistivity and Seebeck Coefficient of Individual Single-Crystal Bismuth Nanowires of 345-nm and 594-nm Diameters Encased in a Quartz Template　　　　　　　　　　　　　　　
  Mioko Otsuka; Ryoei Homma; Yasuhiro Hasegawa
  JOURNAL OF ELECTRONIC MATERIALS, Volume：46, Number：5, First page：2976, Last page：2985, May 2017, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-016-5087-z
  DOI ID：10.1007/s11664-016-5087-z, ISSN：0361-5235, eISSN：1543-186X, Web of Science ID：WOS:000398937900061
• Theoretical modeling of electrical resistivity and Seebeck coefficient of bismuth nanowires by considering carrier mean free path limitation　　　　　　　　　　　　　　　
  Masayuki Murata; Atsushi Yamamoto; Yasuhiro Hasegawa; Takashi Komine; Akira Endo
  JOURNAL OF APPLIED PHYSICS, Volume：121, Number：1, First page：10, Jan. 2017, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.4973191
  DOI ID：10.1063/1.4973191, ISSN：0021-8979, eISSN：1089-7550, ORCID：45323566, Web of Science ID：WOS:000392839400023
• Experimental and Theoretical Evaluations of the Galvanomagnetic Effect in an Individual Bismuth Nanowire　　　　　　　　　　　　　　　
  Masayuki Murata; Atsushi Yamamoto; Yasuhiro Hasegawa; Takashi Komine
  NANO LETTERS, Volume：17, Number：1, First page：110, Last page：119, Jan. 2017, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.nanolett.6b03592
  DOI ID：10.1021/acs.nanolett.6b03592, ISSN：1530-6984, eISSN：1530-6992, Web of Science ID：WOS:000392036600017
• Thermal diffusivity measurement using thermographic method and performance evaluation by impedance spectroscopy for thermoelectric module　　　　　　　　　　　　　　　
  Mioko Otsuka; Hiroki Terakado; Ryoei Homma; Yasuhiro Hasegawa; Md. Zahidul Islam; Georg Bastian; Alexander Stuck
  JAPANESE JOURNAL OF APPLIED PHYSICS, Volume：55, Number：12, Dec. 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.7567/JJAP.55.126601
  DOI ID：10.7567/JJAP.55.126601, ISSN：0021-4922, eISSN：1347-4065, Web of Science ID：WOS:000403936200001
• Anomalous Nernst Effect of Perpendicularly Magnetic Anisotropy TbFeCo Thin Films　　　　　　　　　　　　　　　
  Ryo Ando; Takashi Komine; Yasuhiro Hasegawa
  JOURNAL OF ELECTRONIC MATERIALS, Volume：45, Number：7, First page：3570, Last page：3575, Jul. 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-016-4537-y
  DOI ID：10.1007/s11664-016-4537-y, ISSN：0361-5235, eISSN：1543-186X, Web of Science ID：WOS:000377434100042
• Thermoelectric Module Performance Estimation Based on Impedance Spectroscopy　　　　　　　　　　　　　　　
  Yasuhiro Hasegawa; Ryoei Homma; Mioko Ohtsuka
  JOURNAL OF ELECTRONIC MATERIALS, Volume：45, Number：3, First page：1886, Last page：1893, Mar. 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-015-4271-x
  DOI ID：10.1007/s11664-015-4271-x, ISSN：0361-5235, eISSN：1543-186X, Web of Science ID：WOS:000371163400092
• Enhancement of Seebeck Coefficient in Bi Nanowires by Electric Field Effect　　　　　　　　　　　　　　　
  Takashi Komine; Tomosuke Aono; Yuta Nabatame; Masayuki Murata; Yasuhiro Hasegawa
  JOURNAL OF ELECTRONIC MATERIALS, Volume：45, Number：3, First page：1555, Last page：1560, Mar. 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-015-4113-x
  DOI ID：10.1007/s11664-015-4113-x, ISSN：0361-5235, eISSN：1543-186X, ORCID：45323567, Web of Science ID：WOS:000371163400050
• Magnetic-Field Dependence of Thermoelectric Properties of Sintered Bi90Sb10 Alloy　　　　　　　　　　　　　　　
  Masayuki Murata; Atsushi Yamamoto; Yasuhiro Hasegawa; Takashi Komine
  JOURNAL OF ELECTRONIC MATERIALS, Volume：45, Number：3, First page：1875, Last page：1885, Mar. 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-015-4270-y
  DOI ID：10.1007/s11664-015-4270-y, ISSN：0361-5235, eISSN：1543-186X, ORCID：45323568, Web of Science ID：WOS:000371163400091
• Simultaneous measurement of the Seebeck coefficient and thermal diffusivity for bulk thermoelectric materials　　　　　　　　　　　　　　　
  Ryoei Homma; Yasuhiro Hasegawa; Hiroki Terakado; Hiroyuki Morita; Takashi Komine
  JAPANESE JOURNAL OF APPLIED PHYSICS, Volume：54, Number：2, Feb. 2015, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.7567/JJAP.54.026602
  DOI ID：10.7567/JJAP.54.026602, ISSN：0021-4922, eISSN：1347-4065, Web of Science ID：WOS:000350091000024
• Focused ion beam processing to fabricate ohmic contact electrodes on a bismuth nanowire for Hall measurements　　　　　　　　　　　　　　　
  Masayuki Murata; Yasuhiro Hasegawa
  NANOSCALE RESEARCH LETTERS, Volume：8, Sep. 2013, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1186/1556-276X-8-400
  DOI ID：10.1186/1556-276X-8-400, ISSN：1931-7573, Web of Science ID：WOS:000325248300001
• Thermal conductivity of an individual bismuth nanowire covered with a quartz template using a 3-omega technique　　　　　　　　　　　　　　　
  Yasuhiro Hasegawa; Masayuki Murata; Fumiaki Tsunemi; Yusuke Saito; Katsuhito Shirota; Takashi Komine; Chris Dames; Javier E. Garay
  Journal of Electronic Materials, Volume：42, Number：7, First page：2048, Last page：2055, Jul. 2013, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-013-2520-4
  DOI ID：10.1007/s11664-013-2520-4, ISSN：0361-5235, ORCID：45323573, SCOPUS ID：84879794957, Web of Science ID：WOS:000320890800122
• Current-induced cooling phenomenon in a two-dimensional electron gas under a magnetic field　　　　　　　　　　　　　　　
  Naomi Hirayama; Akira Endo; Kazuhiro Fujita; Yasuhiro Hasegawa; Naomichi Hatano; Hiroaki Nakamura; Ryoen Shirasaki; Kenji Yonemitsu
  Journal of Low Temperature Physics, Volume：172, Number：1-2, First page：132, Last page：153, Jul. 2013
  Scientific journal
  DOI：https://doi.org/10.1007/s10909-012-0852-8
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84879893161&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84879893161&origin=inward
  DOI ID：10.1007/s10909-012-0852-8, ISSN：0022-2291, eISSN：1573-7357, SCOPUS ID：84879893161
• Temperature Coefficient of Electrical Resistivity in Individual Single-Crystal Bismuth Nanowires　　　　　　　　　　　　　　　
  Masayuki Murata; Fumiaki Tsunemi; Yusuke Saito; Katsuhito Shirota; Keisuke Fujiwara; Yasuhiro Hasegawa; Takashi Komine
  JOURNAL OF ELECTRONIC MATERIALS, Volume：42, Number：7, First page：2143, Last page：2150, Jul. 2013, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-013-2552-9
  DOI ID：10.1007/s11664-013-2552-9, ISSN：0361-5235, eISSN：1543-186X, ORCID：45323572, Web of Science ID：WOS:000320890800136
• Numerical Analysis of the Boundary Scattering Effect on Transport Properties in Bi-Sb Nanowires　　　　　　　　　　　　　　　
  Yuta Nabatame; Tsuyoshi Matsumoto; Yuki Ichige; Takashi Komine; Ryuji Sugita; Masayuki Murata; Yasuhiro Hasegawa
  JOURNAL OF ELECTRONIC MATERIALS, Volume：42, Number：7, First page：2172, Last page：2177, Jul. 2013, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-013-2564-5
  DOI ID：10.1007/s11664-013-2564-5, ISSN：0361-5235, ORCID：45323570, Web of Science ID：WOS:000320890800140
• Shubnikov--de Haas Oscillations in Single-Crystal Bismuth Nanowires Encased in Quartz Template　　　　　　　　　　　　　　　
  Tsunemi Fumiaki; Murata Masayuki; Saito Yusuke; Shirota Katsuhito; Hasegawa Yasuhiro; Komine Takashi
  Applied Physics Express, Volume：6, Number：4, First page：45002, Last page：045002-4, Apr. 2013
  Shubnikov--de Haas (SdH) oscillations were measured at 0.3 K in bismuth nanowires with diameters of 393, 548, and 622 nm, and lengths of over 1 mm, which were encased in quartz templates. The magnetoresistance was measured up to a magnetic field of 17 T. Distinct SdH oscillations were observed, and the nanowire samples were rotated in the magnetic field to determine the contribution due to holes, electrons, and spin--orbit interactions. For the 622-nm-diameter nanowire, for example, values of 30.7 meV and 1.66\times 10^{17} cm^-3were obtained for the Fermi energy and carrier density, respectively, which were similar to the values for bulk bismuth.
  The Japan Society of Applied Physics, English
  DOI：https://doi.org/10.7567/APEX.6.045002
  DOI ID：10.7567/APEX.6.045002, ISSN：1882-0778, CiNii Articles ID：10031166429, CiNii Books ID：AA12295133
• Preparation of bismuth nanowire encased in quartz template for Hall measurements using focused ion beam processing　　　　　　　　　　　　　　　
  Masayuki Murata; Yasuhiro Hasegawa; Takashi Komine; Tomohiro Kobayashi
  NANOSCALE RESEARCH LETTERS, Volume：7, First page：1, Last page：6, Sep. 2012, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1186/1556-276X-7-505
  DOI ID：10.1186/1556-276X-7-505, ISSN：1931-7573, Web of Science ID：WOS:000311319400001
• Transport-coefficient dependence of current-induced cooling effect in a two-dimensional electron gas　　　　　　　　　　　　　　　
  Naomi Hirayama; Akira Endo; Kazuhiro Fujita; Yasuhiro Hasegawa; Naomichi Hatano; Hiroaki Nakamura; Ryoen Shirasaki; Kenji Yonemitsu
  Journal of Electronic Materials, Volume：41, Number：6, First page：1535, Last page：1539, Jun. 2012
  Scientific journal
  DOI：https://doi.org/10.1007/s11664-011-1850-3
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84862167887&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84862167887&origin=inward
  DOI ID：10.1007/s11664-011-1850-3, ISSN：0361-5235, SCOPUS ID：84862167887
• Four-Wire Resistance Measurements of a Bismuth Nanowire Encased in a Quartz Template Utilizing Focused Ion Beam Processing　　　　　　　　　　　　　　　
  M. Murata; H. Yamamoto; F. Tsunemi; Y. Hasegawa; T. Komine
  J. Elec. Mater., Volume：41, Number：6, First page：1442-1449, Jun. 2012, [Reviewed]
  English, Scientific journal
• Thermoelectric propeties for single crystal bismuth nanowires using a mean free path limitation model　　　　　　　　　　　　　　　
  D. Nakamura; Y. Hasegawa; M. Murata; H. Yamamoto; T. Komine
  J. Appl. Phys., Volume：110, First page：053702/pp.1-6, Aug. 2011, [Reviewed]
  English, Scientific journal
• Temperature distribution in two-dimensional electron gases under a strong magnetic field　　　　　　　　　　　　　　　
  Naomi Hirayama; Akira Endo; Kazuhiro Fujita; Yasuhiro Hasegawa; Naomichi Hatano; Hiroaki Nakamura; Ryoen Shirasaki; Kenji Yonemitsu
  Journal of Electronic Materials, Volume：40, Number：5, First page：529, Last page：532, May 2011
  International conference proceedings
  DOI：https://doi.org/10.1007/s11664-010-1427-6
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79955880928&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=79955880928&origin=inward
  DOI ID：10.1007/s11664-010-1427-6, ISSN：0361-5235, SCOPUS ID：79955880928
• Numerical Study of Effects of Scattering Processes on Transport Properties of Bi Nanowires　　　　　　　　　　　　　　　
  Yuki Ichige; Tsuyoshi Matsumoto; Takashi Komine; Ryuji Sugita; Tomosuke Aono; Masayuki Murata; Daiki Nakamura; Yasuhiro Hasegawa
  JOURNAL OF ELECTRONIC MATERIALS, Volume：40, Number：5, First page：523, Last page：528, May 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-010-1426-7
  DOI ID：10.1007/s11664-010-1426-7, ISSN：0361-5235, ORCID：45323578, Web of Science ID：WOS:000289901700010
• Numerical Study of Effect of Surface Potential on Transport Properties of Bi Nanowires　　　　　　　　　　　　　　　
  Tsuyoshi Matsumoto; Yuki Ichige; Takashi Komine; Ryuji Sugita; Tomosuke Aono; Masayuki Murata; Daiki Nakamura; Yasuhiro Hasegawa
  JOURNAL OF ELECTRONIC MATERIALS, Volume：40, Number：5, First page：1260, Last page：1265, May 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-010-1406-y
  DOI ID：10.1007/s11664-010-1406-y, ISSN：0361-5235, ORCID：45323577, Web of Science ID：WOS:000289901700142
• Crystal Orientation and Transport Properties of a 633-nm-Diameter Bismuth Nanowire　　　　　　　　　　　　　　　
  Yasuhiro Hasegawa; Daiki Nakamura; Masayuki Murata; Hiroya Yamamoto; Takashi Komine; Takashi Taguchi; Shinichiro Nakamura
  JOURNAL OF ELECTRONIC MATERIALS, Volume：40, Number：5, First page：1005, Last page：1009, May 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-010-1480-1
  DOI ID：10.1007/s11664-010-1480-1, ISSN：0361-5235, ORCID：45323576, Web of Science ID：WOS:000289901700097
• Numerical Analysis of Effect of Scattering Process on Transport Properties in Bi Nanowires　　　　　　　　　　　　　　　
  Y. Ichige; T. Matsumoto; T. Komine; R. Sugita; T. Aono; Y. Hasegawa; M. Murata; D. Nakamura
  J. Elec. Mater., Volume：40, Number：5, First page：523-528, May 2011, [Reviewed]
  English, Scientific journal
• Reduction of temperature fluctuation within low temperature region using a cryocooler　　　　　　　　　　　　　　　
  Daiki Nakamura; Yasuhiro Hasegawa; Masayuki Murata; Hiroya Yamamoto; Fumiaki Tsunemi; Takashi Komine
  REVIEW OF SCIENTIFIC INSTRUMENTS, Volume：82, Number：4, First page：4, Apr. 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.3581211
  DOI ID：10.1063/1.3581211, ISSN：0034-6748, ORCID：45323579, Web of Science ID：WOS:000290051500044
• Temperature distribution in nano-devices under a strong magnetic field　　　　　　　　　　　　　　　
  Naomi Hirayama; Akira Endo; Kazuhiro Fujita; Yasuhiro Hasegawa; Naomichi Hatano; Hiroaki Nakamura; Ryoen Shirasaki
  Computer Physics Communications, Volume：182, Number：1, First page：90, Last page：92, Jan. 2011
  International conference proceedings
  DOI：https://doi.org/10.1016/j.cpc.2010.07.043
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=78149360259&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=78149360259&origin=inward
  DOI ID：10.1016/j.cpc.2010.07.043, ISSN：0010-4655, SCOPUS ID：78149360259
• High-precision temperature control and stabilization using a cryocooler　　　　　　　　　　　　　　　
  Yasuhiro Hasegawa; Daiki Nakamura; Masayuki Murata; Hiroya Yamamoto; Takashi Komine
  REVIEW OF SCIENTIFIC INSTRUMENTS, Volume：81, Number：9, First page：4, Sep. 2010, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.3484192
  DOI ID：10.1063/1.3484192, ISSN：0034-6748, ORCID：45323582, Web of Science ID：WOS:000282440900031
• Numerical Analysis of Effective Thermal Conductivity of Microwire Array Element　　　　　　　　　　　　　　　
  Takashi Komine; Masahiro Kuraishi; Takayuki Teramoto; Ryuji Sugita; Yasuhiro Hasegawa; Masayuki Murata; Daiki Nakamura
  JOURNAL OF ELECTRONIC MATERIALS, Volume：39, Number：9, First page：1606, Last page：1610, Sep. 2010, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-010-1266-5
  DOI ID：10.1007/s11664-010-1266-5, ISSN：0361-5235, ORCID：45323583, Web of Science ID：WOS:000281393000043
• Electrical nanocontact between bismuth nanowire edges and electrodes　　　　　　　　　　　　　　　
  M. Murata; D. Nakamura; Y. Hasegawa; T. Komine; D. Uematsu; S. Nakamura; T. Taguchi
  J. Elec. Mater., Volume：39, Number：9, First page：1536-1542, Jun. 2010, [Reviewed]
  English, Scientific journal
• Thermoelectric properties of a 593 nm individual bismuth nanowire prepared using a quartz template　　　　　　　　　　　　　　　
  D. Nakamura; M. Murata; Y. Hasegawa; T. Komine; D. Uematsu; S. Nakamura; T. Taguchi
  J. Elec. Mater., Volume：39, Number：9, First page：1960-1965, May 2010, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-009-1045-3
  DOI ID：10.1007/s11664-009-1045-3
• Reducing thermal conductivity of thermoelectric materials by using a narrow wire geometry　　　　　　　　　　　　　　　
  Y. Hasegawa; M. Murata; D. Nakamura; T. Komine; T. Taguchi; S. Nakamura; D. Uematsu
  J. Appl. Phys., Volume：106, First page：063703/pp.1-7, Sep. 2009, [Reviewed]
  English, Scientific journal
• Mobility estimation in micro-sized bismuth wire arrays　　　　　　　　　　　　　　　
  Y. Hasegawa; M. Murata; D. Nakamura; T. Komine; T. Taguchi; S. Nakamura
  J. Appl. Phys., Volume：105, First page：103715/pp.1-7, May 2009, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.3133136
  DOI ID：10.1063/1.3133136
• Thermoelectric properties of bismuth nanowires in a quartz template　　　　　　　　　　　　　　　
  Y. Hasegawa; M. Murata; D. Nakamura; T. Komine; T. Taguchi; S. Nakamura; V. Jovovic; J. P. Heremans
  Appl. Phys. Lett., Volume：94, First page：192104, May 2009, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.3133355
  DOI ID：10.1063/1.3133355
• Thermoelectric properties of bismuth micro/nano-wire array elements pressured into a quartz template mold　　　　　　　　　　　　　　　
  Y. Hasegawa; H. Morita; T. Komine; T. Taguchi; S. Nakamura
  J. Elec. Mater., Volume：38, Number：7, First page：944-947, Apr. 2009, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11664-009-0781-8
  DOI ID：10.1007/s11664-009-0781-8
• Thermoelectric property of Cu₂O thin film deposited by Reactive Ion Plating method　　　　　　　　　　　　　　　
  H. Uchiyama; Y. Hasegawa; H. Morita; A. Kurokouchi; K. Wada; T. Komine
  Proceedings of International Conference on Thermoelectrics, First page：379-381, Aug. 2006, [Reviewed]
  English, International conference proceedings
• First-principles calculation of atomic-sized Ni nanocontacts　　　　　　　　　　　　　　　
  T. Takahashi; T. Komine; R. Sugita; Y. Hasegawa
  INTERMAG 2006 - IEEE International Magnetics Conference, First page：472, 2006, [Reviewed]
  English, International conference proceedings
  DOI：https://doi.org/10.1109/INTMAG.2006.376196
  DOI ID：10.1109/INTMAG.2006.376196, SCOPUS ID：50249115135
• Numerical analysis of effective thermal conductivity in microwire array element　　　　　　　　　　　　　　　
  M. Kuraishi; T. Komine; T. Teramoto; R. Sugita; Y. Hasegawa
  ICT'06: XXV INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS, First page：582, Last page：+, 2006, [Reviewed]
  English, International conference proceedings
  Web of Science ID：WOS:000245921800138
• Geometrical dependence of magneto resistivity in bismuth microwire arrays　　　　　　　　　　　　　　　
  Hirofumi Nakano; Yoshiaki Ishikawa; Yasuhiro Hasegawa; Hiroyuki Morita; Takashi Komine
  ICT'06: XXV INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS, First page：375, Last page：+, 2006, [Reviewed]
  English, International conference proceedings
  Web of Science ID：WOS:000245921800086
• Reduction of contact resistance at terminations of bismuth wire arrays　　　　　　　　　　　　　　　
  Yasuhiro Hasegawa; Hiroyuki Morita; Akio Kurokouchi; Kentarou Wada; Takashi Komine
  ICT'06: XXV INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS, First page：372, Last page：+, 2006, [Reviewed]
  English, International conference proceedings
  Web of Science ID：WOS:000245921800085
• Synthesis of silicon nanocones using rf microplasma at atmospheric pressure　　　　　　　　　　　　　　　
  H Shirai; T Kobayashi; Y Hasegawa
  APPLIED PHYSICS LETTERS, Volume：87, Number：14, Oct. 2005, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.2084342
  DOI ID：10.1063/1.2084342, ISSN：0003-6951, Web of Science ID：WOS:000232225700061
• Electronic transport properties of a bismuth microwire array in a magnetic field　　　　　　　　　　　　　　　
  Y Hasegawa; Y Ishikawa; H Morita; T Komine; H Shirai; H Nakamura
  JOURNAL OF APPLIED PHYSICS, Volume：97, Number：8, Apr. 2005, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.1865342
  DOI ID：10.1063/1.1865342, ISSN：0021-8979, Web of Science ID：WOS:000228729500070
• Analysis of a Nonmagnetic Semiconductor in a Magnetoresistive Sensor with Flux-guide-type using Finite Element Method　　　　　　　　　　　　　　　
  H. Takayama; T. Komine; R. Sugita; T. Muranoi; Y. Hasegawa
  J. Magn. Soc. Jpn., Volume：29, Number：3, First page：278-281, Last page：281, Mar. 2005, [Reviewed]
  We investigate the magnetoresistance of a magnetoresistive element consisting of a nonmagnetic semiconductor, four electrodes, and a metallic shunt, with varying locations of the voltage electrodes. The optimum location of the voltage electrodes is estimated from MR ratios calculated by using the finite element method. The MR ratio of 6.9%, which was obtained at an applied magnetic field of 0.005 T for an MR element with asymmetrical voltage electrodes separated by a distance of 25 nm, is higher than that for the MR element with symmetrical electrodes. In order to improve the MR ratio at a low applied field, a flux-guide-type MR element is proposed in this study. An MR ratio of 124% at an applied field of 0.005 T was obtained for a flux-guide-type element with asymmetrical electrodes.
  The Magnetics Society of Japan, Japanese, Scientific journal
  DOI：https://doi.org/10.3379/jmsjmag.29.278
  DOI ID：10.3379/jmsjmag.29.278, ISSN：0285-0192, CiNii Articles ID：110002811784, CiNii Books ID：AN0031390X
• Numerical Analysis of a Magnetic Domain Wall in a Magnetic Nanocontact　　　　　　　　　　　　　　　
  T. Komine; T. Takahashi; R. Sugita; T. Muranoi; Y. Hasegawa
  J. Magn. Soc. Jpn., Volume：29, Number：2, First page：116-119, Last page：119, Feb. 2005, [Reviewed]
  強磁性体ナノ接合の磁壁構造をマイクロマグネティックスにより解析し，Ｈ型強磁性体の接合形状と磁壁幅の関係を明らかにした．
  The Magnetics Society of Japan, Japanese, Scientific journal
  DOI：https://doi.org/10.3379/jmsjmag.29.116
  DOI ID：10.3379/jmsjmag.29.116, ISSN：0285-0192, CiNii Articles ID：110002811869, CiNii Books ID：AN0031390X
• Micromagnetic analysis of a magnetic domain wall in a nanocontact　　　　　　　　　　　　　　　
  T. Komine; T. Takahashi; S. Ishii; R. Sugita; T. Muranoi; Y. Hasegawa
  INTERMAG ASIA 2005: Digests of the IEEE International Magnetics Conference, First page：1753, Last page：1754, 2005
  IEEE Computer Society, English, International conference proceedings
  DOI：https://doi.org/10.1109/intmag.2005.1464310
  DOI ID：10.1109/intmag.2005.1464310, SCOPUS ID：28444438112
• Numerical Analysis of Thermoelectric Properties of Bismuth Under Magnetic Field　　　　　　　　　　　　　　　
  T. Komine; Y. Hasegawa; Y. Ishikawa; H. Morita; H. Shirai; R. sugita; T. Muranoi
  The 23rd International Conference on Thermoelectrics, Jul. 2004
  English, International conference proceedings
• Polarity change switch for peltier current lead
  Masato Moriguchi; Susumu Mizutani; Satoshi Miwa; Tosin Famakinwa; Takayuki Yamaguchi; Makoto Hamabe; Hideaki Takahashi; Keiji Nakamura; Satarou Yamaguchi; Haruhiko Okumura; Yasuhiro Hasegawa
  IEEE Transactions on Applied Superconductivity, Volume：14, First page：1786, Last page：1789, Jun. 2004
  DOI：https://doi.org/10.1109/TASC.2004.831096
  DOI ID：10.1109/TASC.2004.831096, ISSN：1051-8223, SCOPUS ID：4344638499
• Seebeck coefficient and resistivity measurement of polycrystalline Bi in a magnetic field　　　　　　　　　　　　　　　
  Y. Ishikawa; A. Suzuki; T. Komine; H. Shirai; Y. Hasegawa
  The 22nd International Conference on Thermoelectrics, First page：286- 289, Aug. 2003
  English, International conference proceedings
• Investigation on binder for thermoelectric module　　　　　　　　　　　　　　　
  A. Suzuki; Y. Ishikawa; T. Komine; H. Shirai; Y. Hasegawa
  The 22nd International Conference on Thermoelectrics, First page：537- 540, Aug. 2003
  English, International conference proceedings
• Thermoelectric property measurement for a Peltier current lead　　　　　　　　　　　　　　　
  Y. Hasegawa; T. Oike; H. Okumura; K. Sato; K. Nakamura; T. Yamaguchi; A. Iiyoshi; S. Yamaguchi; K. Asano; T. Eura
  International Conference on Thermoelectrics, ICT, Proceedings, First page：507, Last page：510, Dec. 2001
  SCOPUS ID：0035705703
• Thermal resistance measurements of the surfaces of various materials in room temperature to 50 K　　　　　　　　　　　　　　　
  T. Oike; Y. Hasegawa; S. Takayama; S. Yamaguchi
  International Conference on Thermoelectrics, ICT, Proceedings, First page：511, Last page：514, Dec. 2001
  SCOPUS ID：0035707126
• Relation between impedance distribution and current imbalance in an insulated multi-strand superconducting cable conductor
  Akira Ninomiya; Takeshi Ishigohka; Satarou Yamaguchi; Keiji Nakamura; Toshiharu Sato; Satoshi Hanai; Yasuhiro Hasegawa; Haruhiko Okumura; Sadatsugu Takayama; Ryuichi Shimada
  IEEE Transactions on Applied Superconductivity, Volume：11, First page：1466, Last page：1469, Mar. 2001
  DOI：https://doi.org/10.1109/77.920049
  DOI ID：10.1109/77.920049, ISSN：1051-8223, SCOPUS ID：17844374322
• Bismuth-tellurium alloy for Peltier current lead　　　　　　　　　　　　　　　
  S Yamaguchi; K Nakamura; Y Hasegawa; H Okumura; K Sato
  PRICM 4: FORTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, VOLS I AND II, First page：2173, Last page：2176, 2001, [Reviewed]
  English, International conference proceedings
  Web of Science ID：WOS:000178391600551
• Effect of impedance distributions on current imbalance in insulated multi-stranded superconducting conductor
  T Ishigohka; A Ninomiya; S Yamaguchi; Nomura, I; T Sato; S Hanai; Y Hasegawa; H Okumura; R Shimada
  IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, Volume：10, Number：1, First page：1216, Last page：1219, Mar. 2000
  English, Scientific journal
  ISSN：1051-8223, SCOPUS ID：33747602525, Web of Science ID：WOS:000085950700284
• New proposal of medium temperature thermoelectric conversion in power plant　　　　　　　　　　　　　　　
  N. Kondo; S. Yamaguchi; I. Nomura; Y. Hasegawa; T. Eura
  International Conference on Thermoelectrics, ICT, Proceedings, First page：88, Last page：91, Dec. 1999
  ISSN：1094-2734, SCOPUS ID：0033298451
• Computational model of thermoelectric and thermomagnetic semiconductors　　　　　　　　　　　　　　　
  H. Okumura; Y. Hasegawa; H. Nakamura; S. Yamaguchi
  International Conference on Thermoelectrics, ICT, Proceedings, First page：209, Last page：212, Dec. 1999
  ISSN：1094-2734, SCOPUS ID：0033299890
• Real Time Boroniqation Experiments in CHS and Scaling for LHD　　　　　　　　　　　　　　　
  A.Sagara; Y.Hasegawa; K.Tsuzuki; N.Inoue; H.Suzuki; T.Morisaki; N.Noda; O.Motojima; K.Matsuoka; R.Akiyama; K.Ida; H.Idei; K.Iwasaki; S.Kubo; T.Minami; S.Morita; K.Narihara; T.Ozaki; K.Sato; C.Takahashi; K.Tanaka; K.Toi; I.Yamada
  Journal of Nuclear Materials, Volume：241/243, First page：972, Last page：976, 1997, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/S0022-3115(96)00642-3
  DOI ID：10.1016/S0022-3115(96)00642-3, ISSN：0022-3115, CiNii Articles ID：30002371622
• Control of discharge conditions to reduce hydrogen content in boron films coating　　　　　　　　　　　　　　　
  M Natsir; A Sagara; K Tsuzuki; B Tsuchiya; Y Hasegawa; O Motojima
  VACUUM, Volume：47, Number：6-8, First page：997, Last page：999, Jun. 1996, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/0042-207X(96)00110-8
  DOI ID：10.1016/0042-207X(96)00110-8, ISSN：0042-207X, Web of Science ID：WOS:A1996UV26200114

• バルク熱電材料のゼーベック係数・抵抗率・熱拡散率の同時測定　　　　　　　　　　　　　　　
  本間亮英; 寺門宏樹; 長谷川靖洋; 村田正行; 山本淳; 小峰啓史; 森田寛之
  Volume：62nd, 2015
  ISSN：2436-7613, J-Global ID：201502201739113770
• 焼結法により作製したBi-Sb合金の磁場中の熱電物性　　　　　　　　　　　　　　　
  村田正行; 山本淳; 長谷川靖洋; 小峰啓史
  Volume：62nd, 2015
  ISSN：2436-7613, J-Global ID：201502214783666234
• 石英ガラスを利用したBiナノワイヤーの作製と熱電物性の評価　　　　　　　　　　　　　　　
  村田正行; 山本淳; 長谷川靖洋; 小峰啓史
  Volume：6th, 2014
  ISSN：2432-9495, J-Global ID：201502234799079089
• 直径700nm Biナノワイヤーのホール係数測定とキャリア移動度評価　　　　　　　　　　　　　　　
  村田正行; 山本淳; 長谷川靖洋; 小峰啓史
  Volume：75th, 2014
  ISSN：2758-4704, J-Global ID：201402204249733225
• Bi-Sb系バルク材料の作製と熱電物性の評価　　　　　　　　　　　　　　　
  村田正行; 山本淳; 長谷川靖洋; 小峰啓史
  Volume：75th, 2014
  ISSN：2758-4704, J-Global ID：201402235556616352
• 23aTL-2 Shubnikov-de Haas oscillations of single crustal bismuth nanowire　　　　　　　　　　　　　　　
  Tsunemi Fumiaki; Murata Masayuki; Hasegawa Yasuhiro; Komine Takashi; Endo Akira
  Meeting abstracts of the Physical Society of Japan, Volume：66, Number：2, First page：687, Last page：687, 24 Aug. 2011
  The Physical Society of Japan (JPS), Japanese
  ISSN：1342-8349, CiNii Articles ID：110008759757, CiNii Books ID：AA11439205
• 25pHG-15 Current-Induced Cooling Phenomenon in a Two-Dimensional Electron Gas under a Magnetic Field　　　　　　　　　　　　　　　
  Hirayama N.; Endo A.; Fujita K.; Hasegawa Y.; Hatano N.; Nakamura H.; Shirasaki R.; Yonemitsu K.
  Meeting Abstracts of the Physical Society of Japan, Volume：66, Number：1, First page：704, Last page：704, 2011
  The Physical Society of Japan, Japanese
  DOI ID：10.11316/jpsgaiyo.66.1.4.0_704_2, ISSN：1342-8349, J-Global ID：201102228594893914, CiNii Articles ID：110008714789, CiNii Books ID：AA11439205
• 23aTL-3 Theoretical study of thermoelectric characteristics of bismuth nanowires under a quantizing magnetic field　　　　　　　　　　　　　　　
  Hirayam Naomi; Endo Akira; Fujita Kazuhiro; Hasegawa Yasuhiro; Hatano Naomichi; Nakamura Hiroaki; Shirasaki Ryoen; Yonemitsu Kenji
  Meeting Abstracts of the Physical Society of Japan, Volume：66, Number：2, First page：688, Last page：688, 2011
  The Physical Society of Japan, Japanese
  DOI ID：10.11316/jpsgaiyo.66.2.4.0_688_1, ISSN：1342-8349, J-Global ID：201102252418028059, CiNii Articles ID：110008759758, CiNii Books ID：AA11439205
• Thermomagnetic Effect in Thermoelectric Materials　　　　　　　　　　　　　　　
  KOMINE T.; HASEGAWA Y.; NAKAMURA H.
  Bulletin of Topical Symposium of the Magnetics Society of Japan, Volume：173, First page：19, Last page：25, 03 Aug. 2010
  Japanese
  ISSN：1882-2940, CiNii Articles ID：10026602073, CiNii Books ID：AA12326521
• 25aWR-4 Temperature and Electro-Chemical Potential Distributions of Two Dimensional electron gases under a Magnetic Field at Low Temperature　　　　　　　　　　　　　　　
  Hirayama Naomi; Endo Akira; Fujita Kazuhiro; Hasegawa Yasuhiro; Hatano Naomichi; Nakamura Hiroaki; Shirasaki Ryoen
  Meeting Abstracts of the Physical Society of Japan, Volume：65, Number：2, First page：661, Last page：661, 2010
  The Physical Society of Japan, Japanese
  DOI：https://doi.org/10.11316/jpsgaiyo.65.2.4.0_661_1
  DOI ID：10.11316/jpsgaiyo.65.2.4.0_661_1, ISSN：1342-8349, J-Global ID：201002231735405416, CiNii Articles ID：110008098952
• Mean free path limitation of thermoelectric properties of bismuth nanowire　　　　　　　　　　　　　　　
  Masayuki Murata; Daiki Nakamura; Yasuhiro Hasegawa; Takashi Komine; Takashi Taguchi; Shinichiro Nakamura; Christopher M. Jaworski; Vladimir Jovovic; Joseph P. Heremans
  JOURNAL OF APPLIED PHYSICS, Volume：105, Number：11, First page：113706, Jun. 2009
  English
  DOI：https://doi.org/10.1063/1.3131842
  DOI ID：10.1063/1.3131842, ISSN：0021-8979, CiNii Articles ID：80020439521, Web of Science ID：WOS:000267053200072
• 28pTX-5 Quantum Nernst Effect in Bismuth : phonon-drag effect under the coexistence of electrons and holes　　　　　　　　　　　　　　　
  Matsuo M.; Endo A.; Shirasaki R.; Sugihara K.; Nakamura H.; Hasegawa Y.; Hatano N.
  Meeting abstracts of the Physical Society of Japan, Volume：64, Number：1, First page：702, Last page：702, 03 Mar. 2009
  The Physical Society of Japan (JPS), Japanese
  ISSN：1342-8349, CiNii Articles ID：110007372346, CiNii Books ID：AA11439205
• Influence of the band structure of BiSb alloy on the magneto-Seebeck coefficient　　　　　　　　　　　　　　　
  Takayuki Teramoto; Takashi Komine; Shinji Yamamoto; Masahiro Kuraishi; Ryuji Sugita; Yasuhiro Hasegawa; Hiroaki Nakamura
  JOURNAL OF APPLIED PHYSICS, Volume：104, Number：5, First page：053714, Sep. 2008
  English
  DOI：https://doi.org/10.1063/1.2975387
  DOI ID：10.1063/1.2975387, ISSN：0021-8979, eISSN：1089-7550, CiNii Articles ID：80019908829, Web of Science ID：WOS:000259853600068
• Evaluation of Thermoelectric Properties in Bi-Microwires by the Harman Method　　　　　　　　　　　　　　　
  Hideo Iwasaki; Hiroyuki Morita; Yasuhiro Hasegawa
  JAPANESE JOURNAL OF APPLIED PHYSICS, Volume：47, Number：5, First page：3576, Last page：3580, May 2008
  English
  DOI：https://doi.org/10.1143/JJAP.47.3576
  DOI ID：10.1143/JJAP.47.3576, ISSN：0021-4922, Web of Science ID：WOS:000256462500058
• Numerical analysis of the magneto-Seebeck effect of bismuth with anisotropic band structure　　　　　　　　　　　　　　　
  Takayuki Teramoto; Takashi Komine; Masahiro Kuraishi; Ryuji Sugita; Yasuhiro Hasegawa; Hiroaki Nakamura
  JOURNAL OF APPLIED PHYSICS, Volume：103, Number：4, First page：043717, Feb. 2008
  English
  DOI：https://doi.org/10.1063/1.2840060
  DOI ID：10.1063/1.2840060, ISSN：0021-8979, eISSN：1089-7550, CiNii Articles ID：80019378975, Web of Science ID：WOS:000254191300039
• 20aYF-12 The measurement of the diffusion thermopower in the quantum Hall systems　　　　　　　　　　　　　　　
  Fujita K.; Iye Yasuhiro; Endo A.; Shirasaki R.; Sugihara K.; Nakamura H.; Hasegawa Y.; Hatano N.; Matsuo M.; Katsumoto S.
  Meeting Abstracts of the Physical Society of Japan, Volume：63, Number：0, First page：585, Last page：585, 2008
  The Physical Society of Japan, Japanese
  DOI：https://doi.org/10.11316/jpsgaiyo.63.2.4.0_585_3
  DOI ID：10.11316/jpsgaiyo.63.2.4.0_585_3, CiNii Articles ID：110006984665
• 量子効果を期待したナノワイヤー構造熱電変換素子の特性評価　　　　　　　　　　　　　　　
  長谷川靖洋
  Volume：6 (平成19年度), 2008
• 量子効果を期待したナノワイヤー構造熱電変換素子の特性評価　　　　　　　　　　　　　　　
  長谷川靖洋
  総合研究機構研究プロジェクト研究成果報告書, Volume：6 (平成19年度), 2008
• Power factor enhancement in a magnetic field using polycrystalline bismuth microwire arrays　　　　　　　　　　　　　　　
  Yasuhiro Hasegawa; Hirofumi Nakano; Hiroyuki Morita; Takashi Komine; Haruhiko Okumura; Hiroaki Nakamura
  JOURNAL OF APPLIED PHYSICS, Volume：102, Number：7, First page：073701, Oct. 2007
  English
  DOI：https://doi.org/10.1063/1.2785003
  DOI ID：10.1063/1.2785003, ISSN：0021-8979, eISSN：1089-7550, CiNii Articles ID：80018073828, Web of Science ID：WOS:000250147700059
• Aspect ratio dependence of magnetoresistivity in polycrystalline bismuth microwire arrays　　　　　　　　　　　　　　　
  Yasuhiro Hasegawa; Hirofumi Nakano; Hiroyuki Morita; Akio Kurokouchi; Kentarou Wada; Takashi Komine; Hiroaki Nakamura
  JOURNAL OF APPLIED PHYSICS, Volume：101, Number：3, First page：033704 1-5, Feb. 2007
  English
  DOI：https://doi.org/10.1063/1.2432876
  DOI ID：10.1063/1.2432876, ISSN：0021-8979, Web of Science ID：WOS:000244250100085
• Biナノワイヤー熱電素子の開発　　　　　　　　　　　　　　　
  長谷川靖洋; 中野博文; 神戸勇貴; 森田寛之; 小峰啓史; 中村浩章
  Volume：54th, Number：1, 2007
  J-Global ID：200902220150253928
• BiSb合金のバンド構造が磁気ゼーベック係数に与える影響　　　　　　　　　　　　　　　
  寺本貴之; 山本真司; 倉石正寛; 小峰啓史; 長谷川靖洋; 中村浩章; 杉田龍二
  Volume：54th, Number：1, 2007
  J-Global ID：200902261752004870
• ナノワイヤーアレイ構造熱電変換素子開発に向けた基盤整備　　　　　　　　　　　　　　　
  長谷川靖洋
  Volume：5 (平成18年度), First page：155, Last page：156, 2007
• ナノワイヤーアレイ構造熱電変換素子開発に向けた基盤整備　　　　　　　　　　　　　　　
  長谷川靖洋
  総合研究機構研究プロジェクト研究成果報告書, Volume：5 (平成18年度), First page：155, Last page：156, 2007
• Thermomagnetic Effect in Thermoelectric Materials　　　　　　　　　　　　　　　
  KOMINE T.; HASEGAWA Y.; NAKAMURA H.
  Magnetics Japan, Volume：1, Number：10, First page：476, Last page：481, 01 Oct. 2006
  Japanese
  ISSN：1880-7208, CiNii Articles ID：10018781304, CiNii Books ID：AA1211610X
• 熱電材料の磁場効果　　　　　　　　　　　　　　　
  T. Komine; Y. Hasegawa; H. Nakamura
  まぐね, Volume：10, Number：1, First page：476-481, 01 Oct. 2006
  熱電材料の磁場効果及び磁場効果を有効に引き出すためのマイクロワイヤーアレイ素子について解説した．また，低温域で予想される量子ネルンスト効果を紹介した．
  Japanese, Introduction scientific journal
• A method for analysis of carrier density and mobility in polycrystalline bismuth　　　　　　　　　　　　　　　
  Y Hasegawa; Y Ishikawa; T Saso; H Shirai; H Morita; T Komine; H Nakamura
  PHYSICA B-CONDENSED MATTER, Volume：382, Number：1-2, First page：140, Last page：146, Jun. 2006
  English
  DOI：https://doi.org/10.1016/j.physb.2006.02.011
  DOI ID：10.1016/j.physb.2006.02.011, ISSN：0921-4526, CiNii Articles ID：80018993197, Web of Science ID：WOS:000238780100024
• Resistivity and Seebeck coefficient measurements of a bismuth microwire array
  石川最朗; 長谷川靖洋
  Volume：39, First page：81, Last page：85, 2006
  The resistivity and Seebeck coefficient of a bismuth microwire array (wire diameter: 25μm) were successfully measured from 25 to 300 K. To eliminate the influence of the contact resistance between the wire edges of the microwire array and copper electrodes, the titanium (100 nm) /copper (500 nm) film layers were deposited as interlayer on the wire edge by ion plating method. Copper electrodes were glued by using Pb-Sn solder. The resistivity and the Seebeck coefficient at 300K were approximately 1.8μΩm and -54 μV/K, respectively. The value of the resistivity and the Seebeck coefficient were in good agreement with those of bulk polycrystalline bismuth reported previously. Thus, the effects of the contact resistance for the microwire array were almost resolved, and the chemical reaction of the Pb-Sn solder and bismuth was prevented by using the thin film layer. The technique is expected to be applicable to nanowire arrays as well.
  Japanese
  ISSN：1880-4446, CiNii Articles ID：120001370428
• ペルチェ効果を用いたCPU冷却用薄膜の開発　　　　　　　　　　　　　　　
  長谷川靖洋
  Volume：4 (平成17年度), 2006
• Biマイクロワイヤーアレイ素子の抵抗率及びゼーベック係数の計測<論文>
  石川最朗; 長谷川靖洋
  埼玉大学紀要, 工学部, 第1部論文集, Volume：39, First page：81, Last page：85, 2006
  The resistivity and Seebeck coefficient of a bismuth microwire array (wire diameter: 25μm) were successfully measured from 25 to 300 K. To eliminate the influence of the contact resistance between the wire edges of the microwire array and copper electrodes, the titanium (100 nm) /copper (500 nm) film layers were deposited as interlayer on the wire edge by ion plating method. Copper electrodes were glued by using Pb-Sn solder. The resistivity and the Seebeck coefficient at 300K were approximately 1.8μΩm and -54 μV/K, respectively. The value of the resistivity and the Seebeck coefficient were in good agreement with those of bulk polycrystalline bismuth reported previously. Thus, the effects of the contact resistance for the microwire array were almost resolved, and the chemical reaction of the Pb-Sn solder and bismuth was prevented by using the thin film layer. The technique is expected to be applicable to nanowire arrays as well.
  Japanese
  ISSN：1880-4446, CiNii Articles ID：120001370428
• ペルチェ効果を用いたCPU冷却用薄膜の開発　　　　　　　　　　　　　　　
  長谷川靖洋
  総合研究機構研究プロジェクト研究成果報告書, Volume：4 (平成17年度), 2006
• Reduction of contact resistance at terminations of bismuth wire arrays　　　　　　　　　　　　　　　
  Y Hasegawa; Y Ishikawa; H Shirai; H Morita; A Kurokouchi; K Wada; T Komine; H Nakamura
  REVIEW OF SCIENTIFIC INSTRUMENTS, Volume：76, Number：11, First page：113902 1-4, Nov. 2005
  English
  DOI：https://doi.org/10.1063/1.2126952
  DOI ID：10.1063/1.2126952, ISSN：0034-6748, Web of Science ID：WOS:000233569800029
• Resistivity and Seebeck coefficient measurements of a bismuth microwire array　　　　　　　　　　　　　　　
  Y Ishikawa; Y Hasegawa; H Morita; A Kurokouchi; K Wada; T Komine; H Nakamura
  PHYSICA B-CONDENSED MATTER, Volume：368, Number：1-4, First page：163, Last page：167, Nov. 2005
  English
  DOI：https://doi.org/10.1016/j.physb.2005.07.012
  DOI ID：10.1016/j.physb.2005.07.012, ISSN：0921-4526, CiNii Articles ID：80017621253, Web of Science ID：WOS:000232959400025
• Micromagnetic analysis of a magnetic domain wall in 2-D and 3-D nanocontacts　　　　　　　　　　　　　　　
  T Komine; T Takahashi; S Ishii; R Sugita; T Muranoi; Y Hasegawa
  IEEE TRANSACTIONS ON MAGNETICS, Volume：41, Number：10, First page：2586, Last page：2588, Oct. 2005
  English
  DOI：https://doi.org/10.1109/TMAG.2005.854753
  DOI ID：10.1109/TMAG.2005.854753, ISSN：0018-9464, eISSN：1941-0069, CiNii Articles ID：80017742894, Web of Science ID：WOS:000232679700010
• Micromagnetic calculation of the magnetization process in nanocontacts　　　　　　　　　　　　　　　
  Takashi Komine; Tomohiro Takahashi; Ryuji Sugita; Tetsuo Muranoi; Yasuhiro Hasegawa
  Journal of Applied Physics, Volume：97, Number：10, First page：10C508 1-3, 15 May 2005
  English
  DOI：https://doi.org/10.1063/1.1850856
  DOI ID：10.1063/1.1850856, ISSN：0021-8979, SCOPUS ID：20944451577
• Micromagnetic calculation of the magnetization process in nanocontacts　　　　　　　　　　　　　　　
  T Komine; T Takahashi; R Sugita; T Muranoi; Y Hasegawa
  JOURNAL OF APPLIED PHYSICS, Volume：97, Number：10, First page：10C508 1-3, May 2005
  English
  DOI：https://doi.org/10.1063/1.1850856
  DOI ID：10.1063/1.1850856, ISSN：0021-8979, eISSN：1089-7550, Web of Science ID：WOS:000230168300142
• Investigation of physical and electric properties of silver pastes as a binder for thermoelectric materials　　　　　　　　　　　　　　　
  A Suzuki; Y Hasegawa; Y Ishikawa; T Komine; H Morita; H Shirai
  REVIEW OF SCIENTIFIC INSTRUMENTS, Volume：76, Number：2, First page：023907 1-5, Feb. 2005
  English
  DOI：https://doi.org/10.1063/1.1844691
  DOI ID：10.1063/1.1844691, ISSN：0034-6748, Web of Science ID：WOS:000226738400040
• マイクロワイヤー熱電素子の開発　　　　　　　　　　　　　　　
  長谷川靖洋; 石川最朗; 森田寛之; 小峰啓史; 中村浩章
  Volume：52nd, 2005
  J-Global ID：200902248261964833
• 磁場中におけるマイクロワイヤーアレイ素子の熱電特性の計測　　　　　　　　　　　　　　　
  石川最朗; 長谷川靖洋; 小峰啓史; 森田寛之; 中村浩章
  Volume：52nd, Number：1, 2005
  J-Global ID：200902248976231833
• 実効的な磁気ゼーベック係数に及ぼす形状効果の数値解析　　　　　　　　　　　　　　　
  小峰啓史; 長谷川靖洋; 石川最朗; 森田寛之; 中村浩章; 杉田龍二; 村野井徹夫
  Volume：52nd, Number：1, 2005
  J-Global ID：200902274582409905
• Electronic transport properties of a bismuth microwire array in a magnetic field　　　　　　　　　　　　　　　
  Y Hasegawa; Y Ishikawa; H Morita; T Komine; H Shirai; H Nakamura
  ICT: 2005 24th International Conference on Thermoelectrics, Volume：97, Number：8, First page：391, Last page：394, 2005
  English
  DOI：https://doi.org/10.1063/1.1865342
  DOI ID：10.1063/1.1865342, Web of Science ID：WOS:000234650600096
• The first-principles calculation of ferromagnetic nanowire　　　　　　　　　　　　　　　
  TAKAHASHI T.; KOMINE T.; SUGITA R.; MURANOI T.; HASEGAWA Y.
  Volume：28, First page：136, Last page：136, 21 Sep. 2004
  Japanese
  CiNii Articles ID：10013769025, CiNii Books ID：AN10269644
• Numerical Analysis of magnetization process of magnetic nanocontacts　　　　　　　　　　　　　　　
  KOMINE Takashi; HASEGAWA Yasuhiro; SUGITA Ryuji; MURANOI Tetsuo
  Volume：28, First page：147, Last page：147, 21 Sep. 2004
  Japanese
  CiNii Articles ID：10013769052, CiNii Books ID：AN10269644
• Nonmagnetic semiconductors magetoresistive sensor with magnetic material　　　　　　　　　　　　　　　
  TAKAYAMA H.; KOMINE T.; SUGITA R.; MURANOI T.; HASEGAWA Y.
  Volume：28, First page：247, Last page：247, 21 Sep. 2004
  Japanese
  CiNii Articles ID：10013769313, CiNii Books ID：AN10269644
• Synthesis of novel p-type nanocrystalline Si prepared from SiH2Cl2 and SiCl4 for window layer of thin film Si solar cell　　　　　　　　　　　　　　　
  Y Ikeda; T Ito; YL Li; M Yamazaki; Y Hasegawa; H Shirai
  JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, Volume：43, Number：9A, First page：5960, Last page：5966, Sep. 2004
  English
  DOI：https://doi.org/10.1143/JJAP.43.5960
  DOI ID：10.1143/JJAP.43.5960, ISSN：0021-4922, CiNii Articles ID：150000043804, Web of Science ID：WOS:000224579000006
• Magneto-Seebeck coefficient of a bismuth microwire array in a magnetic field　　　　　　　　　　　　　　　
  Y Hasegawa; Y Ishikawa; T Komine; TE Huber; A Suzuki; H Morita; H Shirai
  APPLIED PHYSICS LETTERS, Volume：85, Number：6, First page：917, Last page：919, Aug. 2004
  English
  DOI：https://doi.org/10.1063/1.1781390
  DOI ID：10.1063/1.1781390, ISSN：0003-6951, eISSN：1077-3118, CiNii Articles ID：80016841411, Web of Science ID：WOS:000223109500022
• Rf microplasma jet at atmospheric pressure: characterization and application to thin film processing　　　　　　　　　　　　　　　
  T Kikuchi; Y Hasegawa; H Shirai
  JOURNAL OF PHYSICS D-APPLIED PHYSICS, Volume：37, Number：11, First page：1537, Last page：1543, Jun. 2004
  English
  DOI：https://doi.org/10.1088/0022-3727/37/11/005
  DOI ID：10.1088/0022-3727/37/11/005, ISSN：0022-3727, CiNii Articles ID：80016728477, Web of Science ID：WOS:000222582500006
• Numerical calculation of magneto-seebeck coefficient of bismuth under a magnetic field　　　　　　　　　　　　　　　
  Y Hasegawa; T Komine; Y Ishikawa; A Suzuki; H Shirai
  JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, Volume：43, Number：1, First page：35, Last page：42, Jan. 2004
  English
  DOI：https://doi.org/10.1143/JJAP.43.35
  DOI ID：10.1143/JJAP.43.35, ISSN：0021-4922, CiNii Articles ID：150000042210, Web of Science ID：WOS:000220092400007
• Peltier current lead experiment and their applications for superconducting magnets　　　　　　　　　　　　　　　
  S Yamaguchi; T Yamaguchi; K Nakamura; Y Hasegawa; H Okumura; K Sato
  REVIEW OF SCIENTIFIC INSTRUMENTS, Volume：75, Number：1, First page：207, Last page：212, Jan. 2004
  English
  DOI：https://doi.org/10.1063/1.1633987
  DOI ID：10.1063/1.1633987, ISSN：0034-6748, CiNii Articles ID：80016382541, Web of Science ID：WOS:000187536500030
• Polarity Change Switch for Peltier Current Lead　　　　　　　　　　　　　　　
  MORIGUCHI Masato; MIZUTANI Susumu; YAMAGUCHI Yasuhiro; GOTOH Hideo; SUMI Shin-ichi; HAYASHI Yohji; TERADA Hiroshi; BABA Kiyohide; MATSUOKA Ryousuke; NAKAMURA Keiji; YAMAGUCHI Satarou; IKEZAWA Syunjirou; IIYOSHI Atsuo; SATO Tosikazu; HASEGAWA Yasuhiro; NINOMIYA Akira; ISHIGOUKA Takeshi; OKUMURA Haruhiko; ASANO Kazuhiko; KIMURA Nobuhiro
  Volume：69, First page：210, Last page：210, 03 Dec. 2003
  Japanese
  ISSN：0919-5998, CiNii Articles ID：10013401274, CiNii Books ID：AA1195143X
• Application of PCL in the inside of the vacuum which imitated the helium free magnet　　　　　　　　　　　　　　　
  MIZUTANI Susumu; MORIGUCHI Masato; YAMAGUCHI Takayuki; GOTOH Hideo; SUMI Shin-ichi; HAYASHI Yohji; TERADA Hiroshi; BABA Kiyohide; MATSUOKA Ryousuke; NAKAMURA Keiji; YAMAGUCHI Satarou; IKEZAWA Syunjirou; IIYOSHI Atsuo; SATO Tosikazu; HASEGAWA Yasuhiro; NINOMIYA Akira; ISHIGOUKA Takeshi; OKUMURA Haruhiko; ASANO Kazuhiko; KIMURA Nobuhiro
  低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, Volume：69, First page：212, Last page：212, 03 Dec. 2003
  Japanese
  ISSN：0919-5998, CiNii Articles ID：10013401277, CiNii Books ID：AA1195143X
• Characteristics of Current Imbalance on Superconducting Coils and Suppression with Iron Core Method　　　　　　　　　　　　　　　
  Naohiro Ohtaki; Keiji Nakamura; Sataro Yamaguchi; Shin-ichi Nomura; Akira Ninomiya; Toshikazu Sato; Yasuhiro Hasegawa; Satoshi Hanai
  IEEJ Transactions on Power and Energy, Volume：123, Number：6, First page：759, Last page：764, 2003
  English
  DOI：https://doi.org/10.1541/ieejpes.123.759
  DOI ID：10.1541/ieejpes.123.759, ISSN：1348-8147, CiNii Articles ID：130000081175, SCOPUS ID：85024455614
• Characteristics of Current Imbalance on Superconducting Coils and Suppression with Iron Core Method　　　　　　　　　　　　　　　
  Naohiro Ohtaki; Keiji Nakamura; Sataro Yamaguchi; Shin-ichi Nomura; Akira Ninomiya; Toshikazu Sato; Yasuhiro Hasegawa; Satoshi Hanai
  IEEJ Transactions on Power and Energy, Volume：123, Number：6, First page：759, Last page：764, 2003
  English
  DOI：https://doi.org/10.1541/ieejpes.123.759
  DOI ID：10.1541/ieejpes.123.759, ISSN：1348-8147, CiNii Articles ID：130000081175, SCOPUS ID：85024455614
• 交流通電における液体窒素用ペルチェ電流リードの動作特性　　　　　　　　　　　　　　　
  森口正人; 山口作太郎; 飯吉厚夫; 佐藤利和; 長谷川靖洋; 二ノ宮晃; 石郷岡猛; 奥村晴彦; 浅野克彦
  低温工学・超電導学会講演概要集, Volume：67th, First page：126, 30 Oct. 2002
  Japanese
  ISSN：0919-5998, J-Global ID：200902184460704630, CiNii Articles ID：10013399840
• Evaluation of characteristics of the multi-stage Peltier current lead by numerical calculation　　　　　　　　　　　　　　　
  YAMAGUCHI Takayuki; MIZUTANI Susumu; MORIGUCHI Masato; NAKAMURA Keiji; GOTOH Hideo; SUMI Shin-ichi; HAYASHI Yohji; BABA Kiyohide; YAMAGUCHI Satarou; MATSUOKA Ryousuke; IKEZAWA Shunjirou; IIYOSHI Atsuo; SATO Toshikazu; HASEGAWA Yasuhiro; NINOMIYA Akira; ISHIGOUKA Takeshi; OKUMURA Haruhiko; ASANO Tadahiko
  低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, Volume：67, First page：124, Last page：124, 30 Oct. 2002
  Japanese
  ISSN：0919-5998, CiNii Articles ID：10013399834, CiNii Books ID：AA1195143X
• Characteristics of DC-operated Peltier current Lead under Liquid Nitrogen environment　　　　　　　　　　　　　　　
  MIZUTANI Susumu; MORIGUCHI Masato; YAMAGUCHI Yasuhiro; GOTOH Hideo; SUMI Shin-ichi; HAYASHI Yohji; TERADA Hiroshi; BABA Kiyohide; MATSUOKA Ryousuke; NAKAMURA Keiji; YAMAGUCHI Satarou; IKEZAWA Syunjirou; IIYOSHI Atsuo; SATO Tosikazu; HASEGAWA Yasuhiro; NINOMIYA Akira; ISHIGOUKA Takeshi; OKUMURA Haruhiko; ASANO Kazuhiko
  低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, Volume：67, First page：125, Last page：125, 30 Oct. 2002
  Japanese
  ISSN：0919-5998, CiNii Articles ID：80015675988, CiNii Books ID：AA1195143X
• Reduction of the Heat Leak in Superconducting System at Half-wave-rectified Current Mode by Peltier Current Lead.　　　　　　　　　　　　　　　
  山口貴行; 大瀧直浩; 長谷川靖洋; 中村圭二; 山口作太郎
  低温工学, Volume：37, Number：9, First page：472, Last page：478, 25 Sep. 2002
  Experiments of Peltier current lead (PCL) were performed by the way of half-wave-rectified current (HWRC) for an evaluation of the PCL system in the drive with the large-rippled current. The current ripple of the HWRC is large, and we discussed the cooling capability of the current ripple. The experimental results revealed that the temperature difference of the thermoelectric-element (TE) increased with the magnitude of the current in the PCL system, despite the large current ripple. Calorimetric measurements revealed that the PCL reduced the heat leak of 60% for the peak current 90A. We compared the PCL systems of the direct current (dc) mode and the HWRC mode. The results showed that the current dependence of the temperature difference in the HWRC mode did not match that of the dc mode, but those of the heat leak matched well. The performance of the Peltier cooling in the HWRC mode is reduced to be 2/&pi;time of the Seebeck coefficient for the dc mode by using the time-average method.
  公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会), Japanese
  DOI：https://doi.org/10.2221/jcsj.37.472
  DOI ID：10.2221/jcsj.37.472, ISSN：0389-2441, J-Global ID：200902128024014272, CiNii Articles ID：10009678571, CiNii Books ID：AN00333419
• Reduction of heat leak in cryogenic system using Peltier current leads　　　　　　　　　　　　　　　
  Y Hasegawa; K Sato; H Okumura; K Nakamura; S Yamaguchi; K Miyake
  CRYOGENICS, Volume：42, Number：8, First page：495, Last page：500, Aug. 2002
  English
  DOI：https://doi.org/10.1016/S0011-2275(02)00048-6
  DOI ID：10.1016/S0011-2275(02)00048-6, ISSN：0011-2275, eISSN：1879-2235, CiNii Articles ID：80015512957, Web of Science ID：WOS:000178505900008
• Development of low-heat-leak peltier current lead (3) : Operation characteristics for half wave rectified current　　　　　　　　　　　　　　　
  NAKAMURA Keiji; OHTAKI Naohiro; YAMAGUCHI Takayuki; GOTO Hideo; SUMI Shin-ichi; HAYASHI Hiroshi; TERADA Hiroshi; BABA Kiyohide; YAMAGUCHI Sataro; MATSUOKA Ryosuke; IKEZAWA Shunjiro; IIYOSHI Atsuo; SATO Ken; SATO Kazutoshi; HASEGAWA Yasuhiro; NINOMIYA Akira; ISHIGOYA Takeshi; OKUMURA Haruhiko; ASANO Katsuhiko
  低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, Volume：65, First page：102, Last page：102, 23 Nov. 2001
  Japanese
  ISSN：0919-5998, CiNii Articles ID：10013398508, CiNii Books ID：AA1195143X
• Development of low-heat-leak Peltier current lead (1) : Operation characteristics under liquid nitrogen circumstance　　　　　　　　　　　　　　　
  NAKAMURA Keiji; OHTAKI Naohiro; YAMAGUCHI Takayuki; GOTOH Hideo; SUMI Shin-ichi; HAYASHI Yohji; BABA Kiyohide; YAMAGUCHI Satarou; MATSUOKA Ryousuke; IKEZAWA Shunjirou; IIYOSHI Atsuo; SATO Ken; SATO Toshikazu; HASEGAWA Yasuhiro; NINOMIYA Akira; ISHIGOUKA Takeshi; OKUMURA Haruhiko; ASANO Tadahiko
  低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, Volume：65, First page：258, Last page：258, 23 Nov. 2001
  Japanese
  ISSN：0919-5998, CiNii Articles ID：10013398905, CiNii Books ID：AA1195143X
• Development of low-heat-leak Peltier current lead (2) : Operation characteristics under liquid herium circumstance　　　　　　　　　　　　　　　
  YAMAGUCHI Takayuki; OHTAKI Naohiro; NAKAMURA Keiji; GOTOH Hideo; SUMI Shin-ichi; HAYASHI Yohji; BABA Kiyohide; YAMAGUCHI Satarou; MATSUOKA Ryousuke; IKEZAWA Shunjirou; IIYOSHI Atsuo; SATO Ken; SATO Toshikazu; HASEGAWA Yasuhiro; NINOMIYA Akira; ISHIGOUKA Takeshi; OKUMURA Haruhiko; ASANO Tadahiko
  低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, Volume：65, First page：259, Last page：259, 23 Nov. 2001
  Japanese
  ISSN：0919-5998, CiNii Articles ID：10013398908, CiNii Books ID：AA1195143X
• Required accuracy of inductance measurement for current imbalance phenomena　　　　　　　　　　　　　　　
  S Yamaguchi; S Takayama; Y Hasegawa; A Ninomiya; K Nakamura; H Okumura; R Shimada
  CRYOGENICS, Volume：41, Number：10, First page：705, Last page：712, Oct. 2001
  English
  DOI：https://doi.org/10.1016/S0011-2275(01)00128-X
  DOI ID：10.1016/S0011-2275(01)00128-X, ISSN：0011-2275, CiNii Articles ID：80012898402, Web of Science ID：WOS:000173836500002
• 低温機器への応用に向けた熱電特性の測定
  長谷川靖洋; 三宅潔; 大池知子; 奥村晴彦; 佐藤堅; 中村圭二; 山口貴行; 山口作太郎; 飯吉厚夫
  応用物理学会学術講演会講演予稿集, Volume：62nd, Number：1, First page：134, 11 Sep. 2001
  Japanese
  J-Global ID：201202131274320464
• Peltier素子の低温機器用電流リードへの応用:数値解析
  佐藤堅; 奥村晴彦; 長谷川靖洋; 大池知子; 山口作太郎
  応用物理学会学術講演会講演予稿集, Volume：62nd, Number：1, First page：134, 11 Sep. 2001
  Japanese
  J-Global ID：201202145498475430
• 磁場中における単結晶BiSb熱電特性
  長谷川靖洋; 三宅潔; 大池知子; 奥村晴彦; 佐藤堅; 中村圭二; 山口作太郎; 飯吉厚夫
  応用物理学会学術講演会講演予稿集, Volume：62nd, Number：1, First page：133, 11 Sep. 2001
  Japanese
  J-Global ID：201202161522616533
• 鉄芯法を用いた超伝導コイルにおける偏流抑制試験
  大瀧直浩; 中村圭二; 後藤英雄; 寺田弘; 林洋司; 角伸一; 松岡良輔; 池澤俊治郎; 山口作太郎; 二ノ宮晃; 奥村晴彦; 嶋田隆一; 長谷川靖洋; 佐藤利和; 高山定次
  電気学会全国大会講演論文集, Volume：2001, Number：5, First page：1991, 21 Mar. 2001
  Japanese
  J-Global ID：201302101729352638
• 超電導コイルにおける偏流特性とその抑制
  大瀧直浩; 中村圭二; 後藤英雄; 山口作太郎; 二ノ宮晃; 奥村晴彦; 佐藤利和; 長谷川靖洋; 高山定次
  電気学会超電導応用電力機器研究会資料, Volume：ASC-01, Number：1-15, First page：31, Last page：36, 25 Jan. 2001
  Japanese
  J-Global ID：200902197397874664
• Seebeck coefficient measurement of BiSb single crystal in a magnetic field　　　　　　　　　　　　　　　
  Y. Hasegawa; T. Oike; H. Okumura; N. Sato; S. Yamaguchi; S. Takayama
  First page：356, Last page：359, 2001
• Seebeck coefficient measurement of BiSb single crystal in a magnetic field　　　　　　　　　　　　　　　
  Y. Hasegawa; T. Oike; H. Okumura; N. Sato; S. Yamaguchi; S. Takayama
  IEEE The componets, Packing and Manufacturing Technology Society, Proc. 19th Int. Conf. Thermoelectrics, First page：356, Last page：359, 2001
• Effect of ferromagnetic materials on current imbalance of AC superconducting coil　　　　　　　　　　　　　　　
  中村 圭二; 大滝 直浩; 後藤 英雄; 寺田 弘; 角 紳一; 馬場 清英; 松岡 良輔; 池澤 俊治郎; 山口 作太郎; 二ノ宮 晃; 奥村 晴彦; 高山 定次; 佐藤 利和; 長谷川 靖洋
  低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, Volume：63, First page：269, Last page：269, 31 Oct. 2000
  Japanese
  ISSN：0919-5998, CiNii Articles ID：10013935099, CiNii Books ID：AA1195143X
• Shape effect of resistance and thermoelectric power for BiSb in a magnetic field　　　　　　　　　　　　　　　
  Y. Hasegawa; H. Okumura; N. Kondo; N. Shuto; S. Yamaguchi; N. Sato
  First page：241, Last page：244, 2000
• Shape effect of resistance and thermoelectric power for BiSb in a magnetic field　　　　　　　　　　　　　　　
  Y. Hasegawa; H. Okumura; N. Kondo; N. Shuto; S. Yamaguchi; N. Sato
  IEEE The componets, Packing and Manufacturing Technology Society, Proc. 18th Int. Conf. Thermoelectrics, First page：241, Last page：244, 2000
• Prevention of Current Imbalance No. 2 : Measurement of Inductance and Shunt Resistance　　　　　　　　　　　　　　　
  SATO Toshikazu; NINOMIYA Akira; ISHIGOHKA Takeshi; YAMAGUCHI Satarou; OKUMURA Haruhiko; HANAI Satoshi; HASEGAWA Yasuhiro; SHIMADA Ryuichi
  低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity, Volume：61, First page：125, Last page：125, 10 Nov. 1999
  Japanese
  ISSN：0919-5998, CiNii Articles ID：10013805402, CiNii Books ID：AA1195143X
• LHDにおける直接エネルギー変換 熱電変換の検討 2　　　　　　　　　　　　　　　
  山口作太郎; 奥村晴彦; 河本邦仁; 沢田圭司; 長谷川靖洋; 八坂保能; 米永一郎; 丹治やす典; 近藤成仁
  プラズマ・核融合学会年会予稿集, Volume：16th, Number：16, First page：122, Last page：122, Nov. 1999
  Japanese
  J-Global ID：200902141932476546, CiNii Articles ID：110003746998, CiNii Books ID：AN10117056
• Study on energy distribution of reflected particles from plasma facing materials　　　　　　　　　　　　　　　
  Y Hasegawa; S Masuzaki; N Noda; N Ohyabu; A Sagara; H Suzuki; A Komori; T Morisaki; O Motojima; VS Voitsenya
  JOURNAL OF NUCLEAR MATERIALS, Volume：266, First page：1072, Last page：1077, Mar. 1999
  English
  DOI：https://doi.org/10.1016/S0022-3115(98)00629-1
  DOI ID：10.1016/S0022-3115(98)00629-1, ISSN：0022-3115, CiNii Articles ID：80011050220, Web of Science ID：WOS:000079725200179
• Helicon wave in a semiconductor　　　　　　　　　　　　　　　
  津島 晴; 小川 勇; 長谷川 靖洋; 山口 作太郎
  Number：16, First page：117, Last page：117, 1999
  Japanese
  CiNii Articles ID：110003746989, CiNii Books ID：AN10117056
• Experimental and theoretical study of ion reflection for new diagnostic method of ion energy distribution in edge plasma　　　　　　　　　　　　　　　
  Y Hasegawa; S Masuzaki; N Noda; N Ohyabu; A Sagara; H Suzuki; O Motojima; VS Voitsenya
  PLASMA DEVICES AND OPERATIONS, Volume：7, Number：2, First page：149, Last page：156, 1999
  English
  DOI：https://doi.org/10.1080/10519999908224467
  DOI ID：10.1080/10519999908224467, ISSN：1051-9998, Web of Science ID：WOS:000079682400009
• Experimental and theoretical study of ion reflection for new diagnostic method of ion energy distribution in edge plasma　　　　　　　　　　　　　　　
  Y Hasegawa; S Masuzaki; N Noda; N Ohyabu; A Sagara; H Suzuki; O Motojima; VS Voitsenya
  PLASMA DEVICES AND OPERATIONS, Volume：7, Number：2, First page：149, Last page：156, 1999
  English
  DOI：https://doi.org/10.1080/10519999908224467
  DOI ID：10.1080/10519999908224467, ISSN：1051-9998, Web of Science ID：WOS:000079682400009
• Direct Energy Conversion in LHD(LHD-DECX). Thermoelectric Conversion.　　　　　　　　　　　　　　　
  山口作太郎; 飯吉厚夫; 奥村晴彦; 河本邦仁; 沢田圭司; 長谷川靖洋; 八坂保能; 米永一郎; 新野正之
  プラズマ・核融合学会年会予稿集, Volume：15th, Number：16, First page：212, Last page：122, Nov. 1998
  Japanese
  J-Global ID：200902197537702133, CiNii Articles ID：110003746998, CiNii Books ID：AN10117056
• Simulation Study for New Diagnostic Method of Ion Energy Distribution in Edge Plasma　　　　　　　　　　　　　　　
  Y. Hasegawa; S. Masuzaki
  Volume：1, First page：390, Last page：393, 1998
• Simulation Study for New Diagnostic Method of Ion Energy Distribution in Edge Plasma　　　　　　　　　　　　　　　
  Y. Hasegawa; S. Masuzaki
  Journal of Plasma and Fusion Research SERIES, Volume：1, First page：390, Last page：393, 1998

• Low power operation of magnetic topological insulator devices by controlling interface　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2024 - 31 Mar. 2028
  Ibaraki University
  Grant amount(Total)：18460000, Direct funding：14200000, Indirect funding：4260000
  Grant number：24K00916
• 1次元量子ナノワイヤー熱電変換素子の巨大ゼーベック効果の実証　　　　　　　　　　　　　　　
  01 Apr. 2022 - 31 Mar. 2026
  Grant amount(Total)：17290000, Direct funding：13300000, Indirect funding：3990000
  Grant number：22H01805
• Interfacial structure control for domain wall memories with low-power consumption　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2020 - 31 Mar. 2024
  Ibaraki University
  Grant amount(Total)：17550000, Direct funding：13500000, Indirect funding：4050000
  Grant number：20H02196
• Transport phenomena in bismuth nanowires　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Fund for the Promotion of Joint International Research (Fostering Joint International Research (B)), 09 Oct. 2018 - 31 Mar. 2023
  Saitama University
  Grant amount(Total)：17810000, Direct funding：13700000, Indirect funding：4110000
  Grant number：18KK0132
• Study for giant Seebeck coefficient using one-dimensional single crystam bismuth quantum nanoiwire by nano-fabrication　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2018 - 31 Mar. 2022
  Hasegawa Yasuhiro, Saitama University
  Grant amount(Total)：17160000, Direct funding：13200000, Indirect funding：3960000
  We have successfully fabricated a single-crystal bismuth nanowire with several-ten- to several-hundred-nm diameter and more than 1mm-length embedded in a quartz template. And a technique using nano-fabrication has also been developed to make local electrodes at the side and edge of the nanowire. So, we can measure the transport coefficients of the nanowire like resistivity, Seebeck coefficient, and Hall coefficient. We will indicate the giant Seebeck coefficient from experimental results using the four-probe method.
  Grant number：18H01698
• Development of high-speed domain wall memory by electric field control of Rashba effect　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2016 - 31 Mar. 2020
  Komine Takashi, Ibaraki University
  Grant amount(Total)：16770000, Direct funding：12900000, Indirect funding：3870000
  In this study, we investigated the electric field effect on transport properties of the stacked structure. On the bismuth/insulating layer interface, it was found that the transport properties change remarkably due to the interfacial strain and mixing, which are not observed in the bismuth single layer. On the ferrimagnetic layer/insulating layer interface, the layer thickness dependence of the sign inversion of the anomalous Hall effect was observed due to the interfacial strain and mixing describing the electric field. Obtaining sharp interface structure is inevitable to interpret the experimental results of transport properties.
  We also investigated a novel device in which p-n junction is formed along the film thickness direction due to the electric field effect in a bismuth alloy. As a result, the feasibility of a new thermoelectric element due to the electric field effect was proposed.
  Grant number：16H04325
• Study of giant Seebeck coefficient by thermoelectric nanowire using nano-scale control　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2015 - 31 Mar. 2019
  HASEGAWA Yasuhiro, Saitama University
  Grant amount(Total)：14820000, Direct funding：11400000, Indirect funding：3420000
  Aim of this study is to improve efficiency of thermoelectric conversion by thermoelectric material like bismuth which is one of most material. A strategy has been introduced into the material using nano-wire geometry with nano-scale diameter and milli-scale length, making it possible to occur quantum effect like one-dimensional density of state to enhance its performance; however, the handling of the nanowire has been quite difficult due to its size and fragile. In addition, several local electrodes are required to measure its properties. We have employed nano-fabrication technique we have proposed and have successfully fabricated the electrodes for the measurement. Finally, the measurements of resistivity, magneto-resistivity, and Hall coefficient were performed simultaneously. The experimental results showed us that the mobility suppression in low temperature region was derived from the limitation of the mean free path of the carrier.
  Grant number：15H04142
• Improvement of low drive current and high speed in stacked nanowire memories with ultra-high density recording　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 01 Apr. 2013 - 31 Mar. 2016
  KOMINE TAKASHI; SUGITA RYUJI; AONO TOMOSUKE; HASEGAWA YASUHIRO, Ibaraki University
  Grant amount(Total)：5200000, Direct funding：4000000, Indirect funding：1200000
  In this study, improvement of low drive current and high speed in stacked nanowire memories by utilizing current-induced domain wall motion has been studied. The spin polarization of TbFeCo films was estimated through domain wall resistance, and its spin polarization of 0.16 was experimentally obtained. Influence of classical electromagnetic effect, especially drive current through seed layer, on domain wall motion has been investigated. As a result, the in-plane component due to current field from seed layer enhances domain wall speed. The influence of interlayer coupling on domain wall motion in bilayer nanowires has been also investigated. The anti-ferromagnetic coupling between magnetic layers remarkably improves domain wall speed. We concluded that combination of bilayer structure with spin-orbit-torque is expected to further enhance domain wall speed.
  Grant number：25420318
• Study of transport property for thermoelectric nanowire using nano-processing　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 2011 - 2013
  HASEGAWA Yasuhiro; KOMINE Takashi, Saitama University
  Grant amount(Total)：5070000, Direct funding：3900000, Indirect funding：1170000
  We have fabricated single-crystal bismuth nano-wire possessing less than 1 micro-m and 1 mm-length. local electrodes were formed on side surface of the nano-wire by using nano-processing. As a result, Hall measurement for 4 micro- and 700 nm-diameter have been performed and obtained the mobility for each carrier from 4.2 to 300K. And it revealed that the the magnitude of the mobility in low temperature region was saturated by limitation of the mean free path of the carrier and the temperature coefficient of the resistivity was changed from positive to negative, especially narrow wire.
  Grant number：23560828
• Basic study of high-density nanowire memories by using ferrimagnetic multilayers　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 2010 - 2012
  KOMINE Takashi; SUGITA Ryuji; HASEGAWA Yasuhiro, Ibaraki University
  Grant amount(Total)：4160000, Direct funding：3200000, Indirect funding：960000
  In order to reduce a critical current density in nanowire memories based on spin-transfer torque effect, the effect of material parameters on the critical current density has been investigate. In order to realize high-density bit, the effect of nanowire structure on recording density has also been studied. As a result, the redction of the saturation magnetization is an effective way to reduce the critical current density, and we have proposed that a ferrimagnetic material near the compensation composition is a strong candidate for the low current operation. Moreover, we have proposed the bilayer nanowire consisting of a granular layer and a continuous layer to achieve high-density bit further than that of single-layered nanowires.
  Grant number：22560318
• Theory and experiment of the spin Nernst effect in electron gas systems with a spin-orbit interaction　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 2010 - 2012
  SHIRASAKI Ryoen; HATANO Naomichi; NAKAMURA Hiroaki; ENDO Akira; HASEGAWA Yasuhiro, Yokohama National University
  Grant amount(Total)：4030000, Direct funding：3100000, Indirect funding：930000
  The spin Nernst effect is considered to be a thermoelectric phenomenon which yield the chemical potential difference between carriers with opposite spin in the direction perpendicular to the temperature gradient. We theoretically investigated the electronic states of meso scale electron gas systems with a spin-orbit interaction. Then we investigated the effects of impurities and phonon-drag on transport phenomena of the systems under the temperature gradient. Moreover, we fabricated thesingle-crystal Bi nanowire several hundred nano-meters in diameter, and measured the electronic physical properties.
  Grant number：22560004
• Quantum Effect on Thermoelectric effect and Proposal of Nano Thermomagnetic device　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 2008 - 2011
  NAKAMURA Hiroaki; HATANO Naomichi; YONEMITSU Kenji; ENDO Akira; HASEGAWA Yasuhiro; SHIRASAKI Ryoen; FUJII Tatsuya, National Institute for Fusion Science
  Grant amount(Total)：18980000, Direct funding：14600000, Indirect funding：4380000
  To reveal the mechanism of quantum thermoelectric effect in a magnetic field, we established both theories and experiments. We obtained the following results :(i) estimation of Nernst coefficients for Bi using the theory of"phonon drag",(ii) proposal of rectification effect in metal-semiconductor junction,(iii) measurement of Nernst voltage for GaAs/AlGaAs,(iv) development of simulation for transport equation of electric and heat currents, and(v) measurement of transport coefficients of Bi nano-wire.
  Grant number：20340101
• A study of thermoelectric nano-wire using quartz templte　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (A), 2007 - 2009
  HASEGAWA Yasuhiro, Saitama University
  Grant amount(Total)：18590000, Direct funding：14300000, Indirect funding：4290000
  Bismuth nanowires with lengths of over 1 mm length and diameters of the order of nanometers have been fabricated by high-pressure injection into a quartz template. The temperature dependences of the Seebeck coefficient and resistivity were simultaneously measured.
  Grant number：19686041
• プラズマジェット法を用いたVOC/ナノ粒子分解技術の展開　　　　　　　　　　　　　　　
  2007 - 2009
  Grant amount(Total)：2800000, Direct funding：2800000
  Grant number：19655055
• 量子ネルンスト効果の理論と実験　　　　　　　　　　　　　　　
  2005 - 2007
  Grant amount(Total)：2900000, Direct funding：2900000
  Grant number：17654073
• 大気圧プラズマジェットによる針状シリコン結晶の作製と成長機構の解明　　　　　　　　　　　　　　　
  2005 - 2006
  Grant amount(Total)：3000000, Direct funding：3000000
  Grant number：17656012
• サイクロトロン周波数を制御した熱電素子　　　　　　　　　　　　　　　
  2004 - 2006
  Grant amount(Total)：2000000, Direct funding：2000000
  Grant number：16760562
• マイクロプラズマによるシリコン・炭素系ナノ構造形成過程のその場観察　　　　　　　　　　　　　　　
  2004 - 2005
  Grant amount(Total)：4300000, Direct funding：4300000
  Grant number：16040203
• -　　　　　　　　　　　　　　　
  Competitive research funding
• -　　　　　　　　　　　　　　　
  Competitive research funding