YOSHINO Harukazu

写真a

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Title

Professor

Laboratory location

Sugimoto Campus

Mail Address

E-mail address

Degree 【 display / non-display

  • Tokyo Metropolitan University -  Doctor (Science)

Research Areas 【 display / non-display

Transport Properties, Low-Dimensional Orsanic Conductor, Condensed matter physics II, Electronic materials/Electric materials

Research Interests 【 display / non-display

transport properties in a high magnetic field, organic conductor, thermoelectricity, transport properties under high pressure

Research Career 【 display / non-display

  • Thermoelectric Properties of Molecular-based Organic Crystals

    (International Collaboration) Project Year :

    2006.04
     
     

    Keyword in research subject:  organic conductor, thermopower, themal conductivity

  • Angular Dependent Magnetoresistance Effect in Low-dimensional Metals

    (Collaboration in Japan) Project Year :

    1995.04
     
     

    Keyword in research subject:  Quasi-One-Dimensional, Organic Conductors, Magnetoresistance

  • Phase Transitions and Transport Properties of Unconventional Conductors

    (International Collaboration)

    Keyword in research subject:  Unconventional Conductor, Phase Transition, Transport Property

Current Career 【 display / non-display

  • Osaka City University   Graduate School of Science   Molecular Materials Science Course   Professor  

Graduate School 【 display / non-display

  • 1992.04
    -
    1995.03

    Tokyo Metropolitan University  Graduate School, Division of Natural Science 

Graduating School 【 display / non-display

  • 1986.04
    -
    1990.03

    Tokyo Metropolitan University   Faculty of Science  

 

Published Papers 【 display / non-display

  • Crystal Structures and Electrical Resistivity of Three Exotic TMTSF Salts with I3-: Determination of Valence by DFT and MP2 Calculations

    Harukazu Yoshino, Yoshiki Iwasaki, Rika Tanaka, Yuka Tsujimoto, Chiaki Matsuoka

    Crystals  10 ( 12 ) 1119/1 - 26 2020.12  [Refereed]  [Invited]

  • Crystal Structures and Physical Properties of Charge-Ordered Organic Conductor beta-(MTDT-TTP)(2)BF4

    Wada Tomoya, Nikaido Shun, Yoshino Harukazu, Yamada Jun-ichi, Kodama Takeshi, Kikuchi Koichi

    Bulletin of the Chemical Society of Japan  94 ( 1 ) 164 - 169 2020.10  [Refereed]

     View Summary

    <p>We have prepared a new donor MTDT-TTP (bis(methylthio)dithio-tetrathia-pentalene) and obtained <i>β</i>-(MTDT-TTP)<sub>2</sub>BF<sub>4</sub>, which undergoes structural transition by ordering of the bis(methylthio) groups at 190 K. A crystal structure analysis indicated that the BF<sub>4</sub> salt is in a charge-ordered (CO) state at room temperature (RT), although it shows a metallic behavior above 260 K. The CO pattern at RT has a four-molecular cycle. The BF<sub>4</sub> salt has also the CO state below the transition temperature, but the CO pattern is changed by the structure change.</p>

    DOI CiNii

  • Low-magnetic Field Effect and Electrically Detected Magnetic Resonance Measurements of Photocurrent in Vacuum Vapor Deposition Films of Weak Charge-transfer Pyrene/Dimethylpyromellitdiimide (py/DMPI) Complex

    S. Hagi, K. Kato, M. Hinoshita, H. Yoshino, E. Shiko, and Y. Teki

    J. Chem. Phys.  151   244704/1 - 11 2019.12  [Refereed]  [Invited]

  • Disorder-Enhanced Dimensionless Thermoelectric Figure of Merit zT of Non-stoichiometric Organic Conductor (TTT)(2)I3+delta (delta <= 0.1)

    Yoshino Harukazu, Hasegawa Akifumi, Kuroda Natsuki, Ishikawa Manabu, Tanaka Rika, Kozaki Masatoshi, Nakano Yoshiaki, Otsuka Akihiro, Yamochi Hideki

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN  88 ( 10 )  2019.10  [Refereed]

    DOI

  • Thermoelectric properties of 3D topological insulator: Direct observation of topological surface and its gap opened states

    Matsushita Stephane Yu, Khuong Kim Huynh, Yoshino Harukazu, Ngoc Han Tu, Tanabe Yoichi, Tanigaki Katsumi

    PHYSICAL REVIEW MATERIALS  1 ( 5 )  2017.10  [Refereed]

    DOI

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Review Papers (Misc) 【 display / non-display

  • Transport properties of HMTSF-TCNQ up to 8 GPa and a novel hysteresis and quantum oscillatory behavior in magnetoresistance in magnetic field up to 31 Tesla

    K. Murata, K. Yokogawa, J. S. Brooks, A. Kismarahardja, E. Steven, M. Kano, Y. Seno, N. R. Tamilselvan, H. Yoshino, T. Sasaki, D. Jerome, P. Senzier, K. Bechgaard, M. Uruichi, K. Yakushi

    IOP PUBLISHING LTD INTERNATIONAL CONFERENCE ON HIGH PRESSURE SCIENCE AND TECHNOLOGY, JOINT AIRAPT-22 AND HPCJ-50  215 2010  [Refereed]  [Invited]

     View Summary

    With the interest of ground state near CDW at low temperature, the electronic properties under high pressure, at low temperature and in high magnetic field of HMTSF-TCNQ are examined. Up to 8 GPa, the overall resistivity-temperature behaviour are unchanged, i.e. broad resistance minimum around 100-150 K and subtle resistance decrease below around 30 K. The pressure insensitive nature is not consistent with previous data.. At 1.5 -1.6 GPa, but not at P = 0, a novel hysteretic behaviour and probable quantum oscillations in magnetoresistance are found in a clear form.

    DOI

Conference Activities & Talks 【 display / non-display

  • Thermoelectric Properties of Organic Conductors with Non-stoichiometry and Disorder Giving High zT

    H. Yoshino

    International Symposium of Thermal and Entropic Science  2020.03 

 

Theme of Possible Research Exchange 【 display / non-display

  • Measurement system for thermoelectric power

    Research theme : Development of the measurement system (hardware and software) for electric resistivity and thermoelectric power at high temperature. The system is used for small fragile crystals.

    Request for collaborative research : The private sector, such as other institutions

    Type of research exchange : Technical consultation, Consignment study, Collaborative research, Lecture

    Keyword : thermoelecric material, electric conductor, thermoelectric power, electric resistivity