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2012 Fiscal Year Final Research Report

Exploration of novel electronic phases using molecular-arrangement degrees of freedom

Planned Research

  • PDF
Project AreaNew Frontier in Materials Science Opened by Molecular Degrees of Freedom
Project/Area Number 20110002
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionThe University of Tokyo

Principal Investigator

KANODA Kazushi  東京大学, 大学院・工学系研究科, 教授 (20194946)

Co-Investigator(Kenkyū-buntansha) TAKAHASHI Toshihiro  学習院大学, 理学部, 教授 (60163276)
KOBAYASHI Akito  名古屋大学, 大学院・理学研究科, 准教授 (80335009)
SUZUMURA Yoshikazu  名古屋大学, 大学院・理学研究科, 教授 (90108449)
Co-Investigator(Renkei-kenkyūsha) HIRAKI Koichi  学習院大学, 理学部, 助教 (00306523)
MIYAGAWA Kazuya  東京大学, 大学院・工学系研究科, 助教 (90302760)
TSUCHIIZU Masahisa  名古屋大学, 大学院・理学研究科, 助教 (70362225)
MORI Takehiko  東京工業大学, 大学院・理工学研究科, 教授 (60174372)
TAJIMA Naoya  東邦大学, 理学部, 准教授 (40316930)
Project Period (FY) 2008 – 2012
Keywords強相関電子系 / 磁性 / 低温物性 / 半導体物性 / 分子性固体
Research Abstract

Taking advantage of the variation of molecular arrangement and its controllability in molecular materials, we tackled the fundamental problems in condensed matter physics and explored new electronic phases. As a result, we clarified the critical phenomena of correlation-driven metal-insulator transition, the natures of a spin liquid and superconductivity emerging around the metal-insulator transition, the correlation effect and high-field properties of the massless Dirac electrons, and novel charge-disproportioned states, some of which occur within a molecule.

  • Research Products

    (29 results)

All 2013 2012 2011 2010 2009

All Journal Article (13 results) (of which Peer Reviewed: 13 results) Presentation (15 results) Book (1 results)

  • [Journal Article] Charge-cluster glass in an organic conductor2013

    • Author(s)
      F. Kagawa, T. Sato, K. Miyagawa, K. Kanoda, Y. Tokura, K. Kobayashi, R.Kumai
    • Journal Title

      Nature Physics

      Volume: (掲載決定)

    • DOI

      DOI:10.1038/NPHYS2642

    • Peer Reviewed
  • [Journal Article] Zero-Gap State in α-(BEDT-TTF)_2I_3 under Hydrostatic Pressure2013

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

      Journal of Physical Society of Japan

      Volume: 82 Pages: 044709-1-5

    • DOI

      DOI:10.7555/JPSJ.82.044709

    • Peer Reviewed
  • [Journal Article] Electron correlations in the quasi-two-dimensional organic conductor -(BEDT-TTF)_2I_3 investigated by ^<13>C NMR2012

    • Author(s)
      M. Hirata, K. Miyagawa, K. Kanoda, M. Tamura
    • Journal Title

      Physical Review B

      Volume: 85 Pages: 195146

    • DOI

      DOI:10.1103/PhysRevB.85.195146

    • Peer Reviewed
  • [Journal Article] Charge fluctuation, charge ordering, and zero-gap state inorganic conductors2012

    • Author(s)
      T. Takahashi
    • Journal Title

      Physica B

      Volume: 407 Pages: 1757-1761

    • DOI

      DOI:10.1016/j.physb.2012.01.024

    • Peer Reviewed
  • [Journal Article] ^<13>C NMR study on the charge-disproportionated conducting state in the quasi-two-dimensional organic conductor -(BEDT-TTF)_2I_32011

    • Author(s)
      M. Hirata, K. Ishikawa, K. Miyagawa, K. Kanoda, M. Tamura
    • Journal Title

      Physical Review B

      Volume: 84 Pages: 125133-1-12

    • DOI

      DOI:10.1103/PhysRevB.84.125133

    • Peer Reviewed
  • [Journal Article] Magnetic and non-magnetic phasesof a quantum spin liquid2011

    • Author(s)
      F. L. Pratt, P. J. Baker, S. J. Blundell, T. Lancaster, S. Ohira-Kawamura, C. Baines, Y. Shimizu, K. Kanoda, I. Watanabe, G. Saito
    • Journal Title

      Nature

      Volume: 471 Pages: 612-616

    • DOI

      DOI:10.1038/nature09910

    • Peer Reviewed
  • [Journal Article] Emergence of Dirac electron pair in the charge-ordered state of theorganic conductor -(BEDT-TTF)_2I_32011

    • Author(s)
      A. Kobayashi, Y. Suzumura, F. Piechon, and G. Montambaux
    • Journal Title

      Physical Review B

      Volume: 84 Pages: 75450-1-11

    • DOI

      DOI:10.1103/PhysRevB.84.075450

    • Peer Reviewed
  • [Journal Article] Local Spin Susceptibility of -D_2I_3 (D = bis(ethylendithio)tetraselena-fulvalene (BETS) and bis(ethylendithio)-dithiadiselenafulvalene (BEDT-STF)) Studied by ^<77>Se NMR2011

    • Author(s)
      K. Hiraki, S. Harada, K. Arai, Y. Takano, T. Takahashi, N. Tajima, R. Kato and T. Naito
    • Journal Title

      Journal of Physical Society of Japan

      Volume: 80 Pages: 014715-1-6

    • DOI

      DOI:10.1143/JPSJ.80.014715

    • Peer Reviewed
  • [Journal Article] Pressure-induced superconductivity and Mott transition in spin-liquid -(ET)_2Cu_2(CN)_3 probed by ^<13>CNMR2010

    • Author(s)
      Y. Shimizu, H. Kasahara, T. Furuta, K. Miyagawa, K. Kanoda, M. Maesato, and G. Saito
    • Journal Title

      Physical Review B

      Volume: 81 Pages: 224508-1-5

    • DOI

      DOI:10.1103/PhysRevB.81.224508

    • 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, and Y. Suzumura
    • Journal Title

      Journal of Physical Society of Japan

      Volume: 79 Pages: 114715-1-14

    • DOI

      DOI:10.1143/JPSJ.79.114715

    • Peer Reviewed
  • [Journal Article] Magnetic Mott criticality in a kappa-type organic salt probed by NMR2009

    • Author(s)
      F. Kagawa, K. Miyagawa, K. Kanoda
    • Journal Title

      Nature Physics

      Volume: 5 Pages: 880-884

    • DOI

      DOI:10.1038/nphys1428

    • 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, and M.O. Goerbig
    • Journal Title

      Journal ofPhysical Society of Japan

      Volume: 78 Pages: 114711-1-7

    • DOI

      DOI:10.1143/JPSJ.78. 114711

    • Peer Reviewed
  • [Journal Article] Electronic Properties Close to Dirac Cone in Two-Dimensional Organic Conductor -(BEDT-TTF)_2I_32009

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

      Euro PhysicsJournal

      Volume: 67 Pages: 139-148

    • DOI

      DOI:10.1140/epjb/e2009-00020-0

    • Peer Reviewed
  • [Presentation] Quantum spin liquid in organics with quasi-triangular lattices2013

    • Author(s)
      K. Kanoda
    • Organizer
      The March Meeting 2013 of the AmericanPhysical Society
    • Place of Presentation
      ボルチモア(アメリカ)
    • Year and Date
      20130318-23
  • [Presentation] Overview of superconductivity and Mott physics in organic materials2012

    • Author(s)
      K. Kanoda
    • Organizer
      10th MATERIALS & MECHANISMS OF SUPERCONDUCTIVITYCONFERENCE (M2S 2012)
    • Place of Presentation
      ワシントン(アメリカ)
    • Year and Date
      20120729-0803
  • [Presentation] NMR study of massless Dirac Fermions in an Organic Conductor2012

    • Author(s)
      K. Kanoda
    • Organizer
      The "International Conference on Science and Technology of Synthetic Metals 2012" (ICSM2012)
    • Place of Presentation
      アトランタ(アメリカ)
    • Year and Date
      20120708-13
  • [Presentation] Correlated electrons in triangular-lattice organics with variable Mottness2012

    • Author(s)
      K. Kanoda
    • Organizer
      International Conference on Highly Frustrated Magnetism (HFM2012)
    • Place of Presentation
      ハミルトン(カナダ)
    • Year and Date
      20120604-08
  • [Presentation] Exotic states of Dirac electrons in organic conductors2012

    • Author(s)
      Y. Suzumura
    • Organizer
      International School and Symposium on Multifunctional Molecule-based Materials(ISSMMM)
    • Place of Presentation
      ダーラム(イギリス)
    • Year and Date
      2012-09-24
  • [Presentation] Mott transition, frustrated magnetism and superconductivity in triangular-lattice organics2011

    • Author(s)
      K. Kanoda
    • Organizer
      International Conference on Strongly Correlated Electron Systems(SCES2011)
    • Place of Presentation
      ケンブリッジ(イギリス)
    • Year and Date
      20110829-0903
  • [Presentation] Dirac electron in organic conductors2011

    • Author(s)
      Y. Suzumura
    • Organizer
      The 26th Nishinoniya-Yukawa Memorial International Workshop, NovelQuantum States in Condensed Matter 2011
    • Place of Presentation
      京都(日本)
    • Year and Date
      2011-11-22
  • [Presentation] Charge Fluctuations, Charge Ordering and Zero-gap State in MolecularConductors2011

    • Author(s)
      T. Takahashi
    • Organizer
      International School and Workshop on Electronic Crystals(ECRYS2011)
    • Place of Presentation
      カルケーゼ(フランス)
    • Year and Date
      2011-08-25
  • [Presentation] Dirac electron and Berry curvarure in organic conductors2011

    • Author(s)
      Y. Suzumura
    • Organizer
      International School and Symposium on Multifunctional Molecule-based Materials(ISSMMM)
    • Place of Presentation
      シカゴ(米国)
    • Year and Date
      2011-03-18
  • [Presentation] Mott physics revealed by triangular-lattice organics2010

    • Author(s)
      K. Kanoda
    • Organizer
      International Conference on Science and TechnologySynthetic Metals 2010 (ICSM2010)
    • Place of Presentation
      京都
    • Year and Date
      2010-07-05
  • [Presentation] SDW State of (TMTSF)_2NbF_6 Studied by 77Se NMR2010

    • Author(s)
      T. Takahashi, K. Hiraki, M. Sakata, Y. Yoshida and G. Saito
    • Organizer
      The International Conference on Science and Technology of Synthetic Metals (ICSM2010)
    • Place of Presentation
      京都
    • Year and Date
      2010-07-05
  • [Presentation] α-(BEDT-TTF)_2I_3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
    • Place of Presentation
      熊本
    • Year and Date
      2009-09-25
  • [Presentation] Se NMR studies on -type BETS based superconductors2009

    • Author(s)
      K. Hiraki, M. Kitahara, T. Takahashi, H. Mayaffre, M. Horvatic, C. Berthier, T. Yamaguchi, S. Uji, H. Tanaka, B. Zhou, A. Kobayashi and H. Kobayashi
    • Organizer
      International Symposium on Crystalline Organic Metals, Superconductors and Magnets (ISCOM2009)
    • Place of Presentation
      ニセコ
    • Year and Date
      2009-09-16
  • [Presentation] Spin liquid in triangular-lattice organic Mott insulator2009

    • Author(s)
      K. Kanoda, Y. Kurosaki, H. Hashiba, H. Oike, K. Miyagawa, Y. Shimizu, H. Taniguchi, S. Yamashita, Y. Nakazawa
    • Organizer
      European-Japanese Joint Conference on Frustration in Condensed Matter
    • Place of Presentation
      リヨン (フランス)
    • Year and Date
      2009-05-14
  • [Presentation] α -(BEDT-TTF)_2I_3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
    • Place of Presentation
      東京
    • Year and Date
      2009-03-29
  • [Book] 超伝導ハンドブック(共著)2009

    • Author(s)
      鹿野田一司
    • Publisher
      朝倉書店

URL: 

Published: 2014-08-29  

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