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2009 Fiscal Year Final Research Report

Theory of electron correlation effect on massless Dirac particle in molecular conductor

Research Project

  • PDF
Project/Area Number 19740205
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Condensed matter physics II
Research InstitutionNagoya University

Principal Investigator

KOBAYASHI Akito  Nagoya University, 高等研究院, 特任講師 (80335009)

Project Period (FY) 2007 – 2009
Keywords分子性固体 / 有機導体
Research Abstract

In the present study, anomalous properties in magnetic field was investigated theoretically treating the electron correlation effect in the Dirac cone of the molecular conductor α-(BEDT-TTF)_2I_3. It was predicted that symmetry breaking on Coulomb interaction induces the pseudo-spin XY ferromagnet and the KT transition.

  • Research Products

    (43 results)

All 2011 2010 2009 2008 Other

All Journal Article (14 results) (of which Peer Reviewed: 14 results) Presentation (27 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Role of charge fluctuation in Q1D organic superconductor (TMTSF)2Cl042011

    • Author(s)
      Y.Mizuno, A.Kobayashi, Y.Suzumura
    • Journal Title

      Physica C 471

      Pages: 49-54

    • Peer Reviewed
  • [Journal Article] Tilted-Cone Induced Cusps and Nonmonotonic Structures in Dynamical Polarization Function of Massless Dirac Fermions2010

    • Author(s)
      T.Nishine, A.Kobayashi, Y.Suzumura
    • Journal Title

      J.Phys.Soc.Jpn. 79

      Pages: 114715

    • Peer Reviewed
  • [Journal Article] Transport Currents and Persistent Currents in Solids : Orbital Magnetism and Hall Effect of Dirac Electrons2010

    • Author(s)
      H.Fukuyama, Y.Fuseya, A.Kobayashi
    • Journal Title

      Perspectives of Mesoscopic Physics-Dedicated to Yoseph Imry's 70th Birthday(ed.by A.Aharony and O.E.Wohlman)(World Scientific)

      Pages: 69-78

    • Peer Reviewed
  • [Journal Article] Effect of interactions on Dirac points in organic solids2010

    • Author(s)
      C.Hotta, A.Kobayashi
    • Journal Title

      Physica B 405

      Pages: S164-S167

    • Peer Reviewed
  • [Journal Article] Tilted-Cone-induced easy-plane pseudo-spin ferromagnet and Kosterlitz-Thouless transition in massless Dirac fermions2009

    • Author(s)
      A.Kobayashi, Y.Suzumura, H.Fukuyama, M.O.Goerbig
    • Journal Title

      J.Phys.Soc.Jpn. 78

      Pages: 114711

    • Peer Reviewed
  • [Journal Article] Theoretical study of the zero-gap organic conductor alpha-(BEDT-TTF)2I32009

    • Author(s)
      A.Kobayashi, S.Katayama, Y.Suzumura
    • Journal Title

      Sci.Technol.Adv.Mater. 10

      Pages: 024309

    • Peer Reviewed
  • [Journal Article] Electronic Properties Close to Dirac Cone in Two-Dimensional Organic Conductor alpha-(BEDT-TTF)2I32009

    • Author(s)
      S.Katayama, A.Kobayashi, Y.Suzumura
    • Journal Title

      Eur.Phys.J.B. 67

      Pages: 139-148

    • Peer Reviewed
  • [Journal Article] Theory on Electronic Properties of Gapless States in Molecular Solids, α-(BEDT-TTF)2I32009

    • Author(s)
      A.Kobayashi, Y.Suzumura, H.Fukuyama
    • Journal Title

      Proceedings of the 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology-ISQM-TOKYO'08(ed.by S.Ishioka and K.Fujikawa)(World Scientific Publishing Co., Pte.Ltd.)

      Pages: 168

    • Peer Reviewed
  • [Journal Article] Hall Effect and Orbital Diamagnetism in Zerogap State of Molecular Conductor alpha-(BEDT-TTF)2I32008

    • Author(s)
      A.Kobayashi, Y.Suzumura, H.Fukuyama
    • Journal Title

      J.Phys.Soc.Jpn. 77

      Pages: 064718

    • Peer Reviewed
  • [Journal Article] Effect of anion potential on the zero-gap state in the two-dimensional organic conductor alpha-(BEDT-TTF)2I32008

    • Author(s)
      S.Katayama, A.Kobayashi, Y.Suzumura
    • Journal Title

      J.Phys. : Conf.Ser. 132

      Pages: 012003

    • Peer Reviewed
  • [Journal Article] Exotic properties of zerogap state in alpha-(BEDT-TTF)2I32008

    • Author(s)
      A.Kobayashi, S.Komaba, S.Katayama, Y.Suzumura
    • Journal Title

      J.Phys. : Conf.Ser. 132

      Pages: 012002

    • Peer Reviewed
  • [Journal Article] Mechanism of Superconductivity in Quasi-Two-Dimensional Organic Conductor beta-(BDA-TTP) Salts2008

    • Author(s)
      Y.Nonoyama, Y.Maekawa, A.Kobayashi, Y.Suzumura, H.Ito
    • Journal Title

      J.Phys.Soc.Jpn. 77

      Pages: 094703

    • Peer Reviewed
  • [Journal Article] Charge ordered metal and pressure-induced superconductivity in two-dimensional organic conductor beta''-(DODHT)2PF62008

    • Author(s)
      A.Kobayashi, Y.Suzumura, M.Higa, R.Kondo, S.Kagoshima, H.Nishikawa
    • Journal Title

      J.Phys. : Condens.Matter 20

      Pages: 125205

    • Peer Reviewed
  • [Journal Article] Role of Interlayer Electron Hopping for Spin Density Wave State in the Zero-Gap Organic Conductor2008

    • Author(s)
      S.Katayama, A.Kobayashi, Y.Suzumura
    • Journal Title

      J.Phys.Soc.Jpn. 77

      Pages: 014710

    • Peer Reviewed
  • [Presentation] α-(BEDT-TTF)2I3の電荷秩序相におけるディラック電子対2011

    • Author(s)
      小林晃人、鈴村順三、J.-N.Fuchs, G.Montambaux, F.Piechon
    • Organizer
      日本物理学会第66回年次大会 25pTA13
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-25
  • [Presentation] α型分子性導体における静水圧下でのディラック電子2011

    • Author(s)
      鈴村順三、小林晃人
    • Organizer
      日本物理学会第66回年次大会 25pTA14
    • Place of Presentation
      新潟大学 国内会議招待講演
    • Year and Date
      2011-03-25
  • [Presentation] α-(BEDT-TTF)2NH4Hg(SCN)4のベリー曲率とディラック電子2011

    • Author(s)
      丁子丈士、小林晃人、鈴村順三
    • Organizer
      日本物理学会第66回年次大会 25pTA15
    • Place of Presentation
      新潟大学 国内会議招待講演
    • Year and Date
      2011-03-25
  • [Presentation] Dielectric Properties in the Zero-Gap Organic Conductor alpha-(BEDT-TTF)2I32010

    • Author(s)
      T. Nishine, A. Kobayashi, Y. Suzumura
    • Organizer
      International Conference on Science and Technology of Synthetic Metals (ICSM 2010)
    • Place of Presentation
      Kyoto, Japan, Poster 国際会議発表
    • Year and Date
      20100700
  • [Presentation] Superconducting State of Quasi-one-dimensional Conductors in a Magnetic Field2010

    • Author(s)
      Y. Mizuno, A. Kobayashi, Y. Suzumura
    • Organizer
      Int.Workshop on Organic Electronics and Spintronics 2010
    • Place of Presentation
      Nagoya, Japan 国際会議発表
    • Year and Date
      20100308-20100309
  • [Presentation] α-(BEDT-TTF)2I3の電荷秩序相におけるディラック電子対のMerging2010

    • Author(s)
      小林晃人、鈴村順三、J.-N.Fuchs, G.Montambaux, F.Piechon
    • Organizer
      日本物理学会2010年秋季大会 25aRB-11
    • Place of Presentation
      大阪府立大学 国内会議発表
    • Year and Date
      2010-09-25
  • [Presentation] α-(BEDT-TTF)2I3のゼロギャップ状態近傍のディラック電子のベリー曲率2010

    • Author(s)
      鈴村順三、小林晃人、J.-N.Fuchs, G.Montambaux, F.Piechon
    • Organizer
      日本物理学会2010年秋季大会 25aRB-12
    • Place of Presentation
      大阪府立大学 国内会議発表
    • Year and Date
      2010-09-25
  • [Presentation] ディラックコーンの傾斜に起因する擬スピン強磁性とKT転移2009

    • Author(s)
      小林晃人、鈴村順三、福山秀敏、Mark O.Goerbig
    • Organizer
      物性研究所短期研究会「ディラック電子系の物性-グラフェンおよび関連物質の最近の研究」
    • Place of Presentation
      東京大学物性研究所 国内会議招待講演
    • Year and Date
      20091022-20091024
  • [Presentation] Electron Correlation Effects on Massless Dirac Fermions in Organic Conductor Alpha-(BEDT-TTF)2I32009

    • Author(s)
      A. Kobayashi, Y. Suzumura, F. Piechon, G. Montambaux
    • Organizer
      SCMC2009
    • Place of Presentation
      Narita, Japan 国際会議発表
    • Year and Date
      20090918-20090919
  • [Presentation] Electron Correlation Effects on Massless Dirac Fermions under Strong Magnetic Field in Organic Conductor Alpha-(BEDT-TTF)2I32009

    • Author(s)
      A .Kobayashi, Y. Suzumura, H. Fukuyama, M. O. Goerbig
    • Organizer
      ISCOM2009
    • Place of Presentation
      Niseko Hokkaido, Japan 国際会議招待講演
    • Year and Date
      20090912-20090917
  • [Presentation] α-(BEDT-TTF)2I3 における擬スピン強磁性とKT転移2009

    • Author(s)
      小林晃人、鈴村順三、福山秀敏、Mark O.Goerbig
    • Organizer
      基研研究会「分子性導体における質量ゼロのディラック粒子とその新展開」
    • Place of Presentation
      京都大学基礎物理学研究所 国内会議招待講演
    • Year and Date
      20090702-20090703
  • [Presentation] コメント:α-(BEDT-TTF)2I3のゼロギャップ状態2009

    • Author(s)
      鈴村順三、片山新也、小林晃人
    • Organizer
      基研研究会「分子性導体における質量ゼロのディラック粒子とその新展開」
    • Place of Presentation
      京都大学基礎物理学研究所 国内会議招待講演
    • Year and Date
      20090702-20090703
  • [Presentation] 擬1次元磁場誘起超伝導体における軌道効果2009

    • Author(s)
      水野佑亮, 小林晃人, 鈴村順三
    • Organizer
      日本物理学会2009年秋季大会 27pYC-5
    • Place of Presentation
      熊本大学 国内会議招待講演
    • Year and Date
      2009-09-27
  • [Presentation] α-(BEDT-TTF)2I3のゼロギャップ状態における擬スピン強磁性とKT転移2009

    • Author(s)
      小林晃人、鈴村順三、福山秀敏、Mark O.Goerbig
    • Organizer
      日本物理学会2009年秋季大会 25aYC-3
    • Place of Presentation
      熊本大学 国内会議招待講演
    • Year and Date
      2009-09-25
  • [Presentation] α-(BEDT-TTF)2I3のゼロギャップ状態における動的誘電応答-Diracコーンの傾きの効果2009

    • Author(s)
      西根達郎、小林晃人、鈴村順三
    • Organizer
      日本物理学会第64回年次大会 29pYF-10
    • Place of Presentation
      立教大学 国内会議招待講演
    • Year and Date
      2009-03-29
  • [Presentation] α-(BEDT-TTF)2I3のゼロギャップ状態における磁場下での電子間斥力の効果2009

    • Author(s)
      小林晃人、鈴村順三、福山秀敏
    • Organizer
      日本物理学会第64回年次大会 29pYF-11
    • Place of Presentation
      立教大学 国内会議招待講演
    • Year and Date
      2009-03-29
  • [Presentation] 擬1次元有機導体(TMTSF)2Cl04におけるトリプレット超伝導2009

    • Author(s)
      水野佑亮、小林晃人、鈴村順三
    • Organizer
      日本物理学会第64回年次大会 28pYF-41
    • Place of Presentation
      立教大学 国内会議招待講演
    • Year and Date
      2009-03-28
  • [Presentation] Theory on Electronic Properties of Dirac Electrons in Organic Conductors2008

    • Author(s)
      A. Kobayashi, Y. Suzumura, H. Fukuyama
    • Organizer
      The International Symposium on Anomalous Quantum Materials 2008 (ISAQM2008) and the 7-th Asia-Pacific Workshop
    • Place of Presentation
      Tokyo, Japan 国際会議招待講演
    • Year and Date
      20081107-20081110
  • [Presentation] Theory on Electronic Properties of Gapless States in Molecular Solids, α-(BEDT-TTF)2I32008

    • Author(s)
      A. Kobayashi, Y. Suzumura, H. Fukuyama
    • Organizer
      The 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology (ISQM-TOKYO'08)
    • Place of Presentation
      Hitachi, Ltd.Hatoyama, Japan 国際会議招待講演
    • Year and Date
      20080825-20080828
  • [Presentation] Exotic properties of zerogap state in α-(BEDT-TTF)2I32008

    • Author(s)
      A. Kobayashi, S. Katayama, Y. Suzumura, H. Fukuyama
    • Organizer
      International Symposium on Molecular Conductors 2008 (ISMC2008)
    • Place of Presentation
      Okazaki Conference Center, Institute for Molecular Science 国際会議発表
    • Year and Date
      20080723-20080725
  • [Presentation] Possible mechanism to enhance spin-fluctuation-mediated superconductivity in two-dimensional organic conductor2008

    • Author(s)
      Y. Nonoyama, Y. Maekawa, A. Kobayashi, Y. Suzumura, J. Yamada
    • Organizer
      International Symposium on Molecular Conductors 2008 (ISMC2008)
    • Place of Presentation
      Okazaki Conference Center, Institute for Molecular Science 国際会議発表
    • Year and Date
      20080723-20080725
  • [Presentation] Effect of anion potential on the zero-gap state in the two-dimensional organic conductor alpha-(BEDT-TTF)2I32008

    • Author(s)
      S. Katayama, A. Kobayashi, Y. Suzumura
    • Organizer
      International Symposium on Molecular Conductors 2008 (ISMC2008)
    • Place of Presentation
      Okazaki Conference Center, Institute for Molecular Science 国際会議発表
    • Year and Date
      20080723-20080725
  • [Presentation] α-(BEDT-TTF)2I3のゼロギャップ状態における磁場中での電子相関効果2008

    • Author(s)
      小林晃人、鈴村順三、福山秀敏
    • Organizer
      日本物理学会2008年秋季大会 22aTC5
    • Place of Presentation
      岩手大学 国内会議招待講演
    • Year and Date
      2008-09-22
  • [Presentation] ET塩におけるゼロギャップ状態のフェルミ点近傍でのふるまい2008

    • Author(s)
      片山新也、小林晃人、鈴村順三
    • Organizer
      日本物理学会2008年秋季大会 22aTC3
    • Place of Presentation
      岩手大学 国内会議招待講演
    • Year and Date
      2008-09-22
  • [Presentation] α-(BEDT-TTF)2I3のゼロギャップ状態におけるスクリーニング効果2008

    • Author(s)
      西根達郎、小林晃人、鈴村順三
    • Organizer
      日本物理学会2008年秋季大会 22aTC4
    • Place of Presentation
      岩手大学 国内会議招待講演
    • Year and Date
      2008-09-22
  • [Presentation] α-(ET)2I3の高圧下13C-NMR2008

    • Author(s)
      清水康弘、小林晃人、伊藤正行、山本浩史、鷹野芳樹、高橋利宏
    • Organizer
      日本物理学会2008年秋季大会 22aTC9
    • Place of Presentation
      岩手大学 国内会議招待講演
    • Year and Date
      2008-09-22
  • [Presentation] TMTSF塩の超伝導状態におけるFlude-Ferrell相2008

    • Author(s)
      水野佑亮、小林晃人、鈴村順三
    • Organizer
      日本物理学会2008年秋季大会 21pTC12
    • Place of Presentation
      岩手大学 国内会議招待講演
    • Year and Date
      2008-09-21
  • [Book] 電荷秩序下での超伝導(福山秀敏、秋光純(編))(ゼロギャップ状態、超伝導ハンドブック)

    • Author(s)
      小林晃人
    • Total Pages
      44-48
    • Publisher
      朝倉書店
  • [Remarks] ホームページ等

    • URL

      http://www.slab.phys.nagoya-u.ac.jp/akito/

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Published: 2012-02-13   Modified: 2016-04-21  

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