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Research on electronic states near the Mott transition

Research Project

Project/Area Number 23540428
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Condensed matter physics II
Research InstitutionNational Institute for Materials Science

Principal Investigator

KOHNO Masanori  独立行政法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, MANA研究者 (40370308)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsモット転移 / 高温超伝導体 / ハバードモデル / クラスター摂動理論 / 擬ギャップ / ホールドープ / 電子ドープ / 次近接ホッピング / スペクトル強度分布 / 電荷自由度の凍結 / スピン波励起 / 厳密解 / ストリング解
Research Abstract

In cuprate high-temperature superconductors near the metal-insulator transition (Mott transition), various anomalous features of electronic states have been observed, which are considered to be intimately related to the mechanism of high-temperature superconductivity. In this study, by a numerical simulation for a two-dimensional system near the Mott transition, primary features of the Mott transition in a two-dimensional system were similarly explained as those of a one-dimensional system. In addition, from the viewpoint of the Mott transition, various anomalous features observed in cuprate high-temperature superconductors were successfully explained in a unified manner.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (48 results)

All 2014 2013 2012 2011 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (38 results) (of which Invited: 4 results) Book (3 results) Remarks (4 results)

  • [Journal Article] Kosterlitz-Thouless-type transition in a charge ordered state of the layered organic conductorα-(BEDT-TTF)_2I_3, S. Uji2013

    • Author(s)
      S. Uji, K. Kodama, K. Sugii, Y. Takahide, T. Terashima, N. Kurita, S. Tsuchiya, M. Kohno, M. Kimata, K. Yamamoto, and K. Yakushi
    • Journal Title

      Phys. Rev. Lett.

      Volume: 110 Issue: 19 Pages: 196602-196602

    • DOI

      10.1103/physrevlett.110.196602

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Mott transition in the two-dimensional Hubbard model2012

    • Author(s)
      Masanori Kohno
    • Journal Title

      Physical Review Letters

      Volume: 108 Issue: 7 Pages: 0764011-5

    • DOI

      10.1103/physrevlett.108.076401

    • Related Report
      2013 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Relation between high-energy quasiparticles of quasi-one-dimensional antiferromagnets in a magnetic field and a doublon of a Hubbard chain2011

    • Author(s)
      Masanori Kohno
    • Journal Title

      Journal of Physics : Conference Series

      Volume: 320 Pages: 0120211-6

    • DOI

      10.1088/1742-6596/320/1/012021

    • Related Report
      2013 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Presentation] 非アーベル動的密度行列繰り込み群法とクラスター摂動理論を用いた2次元t-Jモデルのモット転移の研究2014

    • Author(s)
      河野昌仙
    • Organizer
      日本物理学会2014年年次大会
    • Place of Presentation
      東海大学, 平塚, 日本
    • Year and Date
      2014-03-27
    • Related Report
      2013 Final Research Report
  • [Presentation] Nature of the Mott transition in the one- and two-dimensional Hubbard models2014

    • Author(s)
      Masanori Kohno
    • Organizer
      APS Marchmeeting 2014
    • Place of Presentation
      Denver, アメリカ
    • Year and Date
      2014-03-04
    • Related Report
      2013 Final Research Report
  • [Presentation] 非アーベル動的密度行列繰り込み群法とクラスター摂動理論を用いた2次元t-Jモデルのモット転移の研究2014

    • Author(s)
      河野昌仙
    • Organizer
      日本物理学会2014年年次大会
    • Place of Presentation
      東海大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] Nature of the Mott transition in the one- and two-dimensional Hubbard models2014

    • Author(s)
      Masanori Kohno
    • Organizer
      APS March meeting 2014
    • Place of Presentation
      Denver
    • Related Report
      2013 Annual Research Report
  • [Presentation] 2次元t-Jモデルのモット転移近傍の性質2013

    • Author(s)
      河野昌仙
    • Organizer
      日本物理学会2013年秋季大会
    • Place of Presentation
      徳島大学, 徳島, 日本
    • Year and Date
      2013-09-26
    • Related Report
      2013 Final Research Report
  • [Presentation] Relationship between single-particle excitation and spin excitation at the Mott Transition2013

    • Author(s)
      Masanori Kohno
    • Organizer
      International Conference on Strongly Correlated Electron Systems 2013
    • Place of Presentation
      東京大学, 東京, 日本
    • Year and Date
      2013-08-08
    • Related Report
      2013 Final Research Report
  • [Presentation] Nature of the Mott transition in the one- and two-dimensional Hubbard models2013

    • Author(s)
      Masanori Kohno
    • Organizer
      Bad Metal Behavior and Mott Quantum Criticality Workshop
    • Place of Presentation
      浦項工科大学, 浦項, 韓国
    • Year and Date
      2013-07-18
    • Related Report
      2013 Final Research Report
  • [Presentation] 電子ドープ系の擬ギャップ2013

    • Author(s)
      河野昌仙
    • Organizer
      日本物理学会2013年年次大会
    • Place of Presentation
      広島大学, 広島, 日本
    • Year and Date
      2013-03-27
    • Related Report
      2013 Final Research Report
  • [Presentation] Spectral properties near the Mott transition in the two-dimensional Hubbard model2013

    • Author(s)
      Masanori Kohno
    • Organizer
      APS March meeting 2013
    • Place of Presentation
      Baltimore, アメリカ
    • Year and Date
      2013-03-20
    • Related Report
      2013 Final Research Report
  • [Presentation] 2次元t-Jモデルのモット転移近傍の性質2013

    • Author(s)
      河野昌仙
    • Organizer
      日本物理学会2013年秋季大会
    • Place of Presentation
      徳島大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] Relationship between single-particle excitation and spin excitation at the Mott Transition2013

    • Author(s)
      Masanori Kohno
    • Organizer
      International Conference on Strongly Correlated Electron Systems 2013
    • Place of Presentation
      東京大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] Nature of the Mott transition in the one- and two-dimensional Hubbard models2013

    • Author(s)
      Masanori Kohno
    • Organizer
      Bad Metal Behavior and Mott Quantum Criticality Workshop
    • Place of Presentation
      浦項工科大学
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 電子ドープ系の擬ギャップ2013

    • Author(s)
      河野昌仙
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(東広島市)
    • Related Report
      2012 Research-status Report
  • [Presentation] Spectral properties near the Mott transition in the two-dimensional Hubbard model2013

    • Author(s)
      Masanori Kohno
    • Organizer
      APS March meeting 2013
    • Place of Presentation
      Baltimore Convention Center(Baltimore, アメリカ)
    • Related Report
      2012 Research-status Report
  • [Presentation] 2次元ハバードモデルの擬ギャップ2012

    • Author(s)
      河野昌仙
    • Organizer
      日本物理学会2012年秋季大会
    • Place of Presentation
      横浜国立大学, 横浜, 日本
    • Year and Date
      2012-09-13
    • Related Report
      2013 Final Research Report
  • [Presentation] Relationship between single-particle excitation and spin excitation at the Mott transition2012

    • Author(s)
      Masanori Kohno
    • Organizer
      International Conference on Magnetism 2012
    • Place of Presentation
      Busan Exhibition Convention Center, 釜山, 韓国
    • Year and Date
      2012-07-12
    • Related Report
      2013 Final Research Report
  • [Presentation] Quasiparticles of quasi-one-dimensional antiferromagnets in a magnetic field2012

    • Author(s)
      Masanori Kohno
    • Organizer
      IES Lecture Series
    • Place of Presentation
      浦項工科大学, 浦項, 韓国
    • Year and Date
      2012-04-19
    • Related Report
      2013 Final Research Report
  • [Presentation] Spinons and triplons in anisotropic triangular antiferromagnets2012

    • Author(s)
      Masanori Kohno
    • Organizer
      IESLectureSeries
    • Place of Presentation
      浦項工科大学, 浦項, 韓国
    • Year and Date
      2012-04-18
    • Related Report
      2013 Final Research Report
  • [Presentation] Mott transition in one- and two-dimensional Hubbard models2012

    • Author(s)
      Masanori Kohno
    • Organizer
      IES Lecture Series
    • Place of Presentation
      浦項工科大学, 浦項, 韓国
    • Year and Date
      2012-04-17
    • Related Report
      2013 Final Research Report
  • [Presentation] モット転移における1粒子励起と磁気励起との関係2012

    • Author(s)
      河野昌仙
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学, 西宮, 日本
    • Year and Date
      2012-03-24
    • Related Report
      2013 Final Research Report
  • [Presentation] String solutions and Mott physics in quasi-one-dimensional antiferromagnets2012

    • Author(s)
      Masanori Kohno
    • Organizer
      APS March meeting 2012
    • Place of Presentation
      Boston, アメリカ
    • Year and Date
      2012-02-27
    • Related Report
      2013 Final Research Report
  • [Presentation] 2次元ハバードモデルの擬ギャップ2012

    • Author(s)
      河野昌仙
    • Organizer
      日本物理学会2012年秋季大会
    • Place of Presentation
      横浜国立大学(横浜市)
    • Related Report
      2012 Research-status Report
  • [Presentation] Relationship between single-particle excitation and spin excitation at the Mott transition2012

    • Author(s)
      Masanori Kohno
    • Organizer
      International Conference on Magnetism 2012
    • Place of Presentation
      Busan Exhibition Convention Center(釜山, 韓国)
    • Related Report
      2012 Research-status Report
  • [Presentation] Mott transition in one- and two-dimensional Hubbard models2012

    • Author(s)
      Masanori Kohno
    • Organizer
      IES Lecture Series, POSTECH
    • Place of Presentation
      浦項工科大学(浦項, 韓国)
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Quasiparticles of quasi-one-dimensional antiferromagnets in a magnetic field2012

    • Author(s)
      Masanori Kohno
    • Organizer
      IES Lecture Series, POSTECH
    • Place of Presentation
      浦項工科大学(浦項, 韓国)
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Spinons and triplons in anisotropic triangular antiferromagnets2012

    • Author(s)
      Masanori Kohno
    • Organizer
      IES Lecture Series, POSTECH
    • Place of Presentation
      浦項工科大学(浦項, 韓国)
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] モット転移における1粒子励起と磁気励起との関係2012

    • Author(s)
      河野昌仙
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学(西宮市)
    • Related Report
      2011 Research-status Report
  • [Presentation] String solutions and Mott physics in quasi-one-dimensional antiferromagnets2012

    • Author(s)
      Masanori Kohno
    • Organizer
      APS March meeting 2012
    • Place of Presentation
      Boston Convention & Exhibition Center(Boston, アメリカ)
    • Related Report
      2011 Research-status Report
  • [Presentation] 空間的異方性をもつスピン1/2三角格子反強磁性体における励起2011

    • Author(s)
      河野昌仙
    • Organizer
      G-COE&極限量子科学研究センタージョイントセミナー
    • Place of Presentation
      大阪大学, 豊中, 日本
    • Year and Date
      2011-12-15
    • Related Report
      2013 Final Research Report
  • [Presentation] ストリング解とモットの物理2011

    • Author(s)
      河野昌仙
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学, 富山, 日本
    • Year and Date
      2011-09-21
    • Related Report
      2013 Final Research Report
  • [Presentation] 歪んだ三角格子反強磁性体の磁気励起2011

    • Author(s)
      河野昌仙
    • Organizer
      第40回化合物新磁性材料研究会
    • Place of Presentation
      東京理科大学, 東京, 日本
    • Year and Date
      2011-09-09
    • Related Report
      2013 Final Research Report
  • [Presentation] Origin of high-energy magnetic excitations in anisotropic triangular antiferromagnets in a magnetic field : relation to Mott physics2011

    • Author(s)
      Masanori Kohno
    • Organizer
      MEXT/CIFAR workshop on frustrated magnetic and other systems
    • Place of Presentation
      Coast Plaza Hotel, バンクーバー, カナダ
    • Year and Date
      2011-05-31
    • Related Report
      2013 Final Research Report
  • [Presentation] 異方的2次元フラストレート磁性体の有限温度の性質2011

    • Author(s)
      河野昌仙
    • Organizer
      特定領域研究「フラストレーションが創る新しい物性」平成22年度立ち上げ全体会議
    • Place of Presentation
      理化学研究所, 和光, 日本
    • Year and Date
      2011-05-11
    • Related Report
      2013 Final Research Report
  • [Presentation] 空間的異方性をもつスピン1/2三角格子反強磁性体における励起2011

    • Author(s)
      河野昌仙
    • Organizer
      G-COE & 極限量子科学研究センタージョイントセミナー(招待講演)
    • Place of Presentation
      大阪大学(豊中市)
    • Related Report
      2011 Research-status Report
  • [Presentation] ストリング解とモットの物理2011

    • Author(s)
      河野昌仙
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学(富山市)
    • Related Report
      2011 Research-status Report
  • [Presentation] 歪んだ三角格子反強磁性体の磁気励起2011

    • Author(s)
      河野昌仙
    • Organizer
      第40回化合物新磁性材料研究会(招待講演)
    • Place of Presentation
      東京理科大学(東京都)
    • Related Report
      2011 Research-status Report
  • [Presentation] Origin of high-energy magnetic excitations in anisotropic triangular antiferromagnets in a magnetic field: relation to Mott physics2011

    • Author(s)
      Masanori Kohno
    • Organizer
      MEXT/CIFAR workshop on frustrated magnetic and other systems(招待講演)
    • Place of Presentation
      Coast Plaza Hotel and Suites(Vancouver, カナダ)
    • Related Report
      2011 Research-status Report
  • [Presentation] 異方的2次元フラストレート磁性体の有限温度の性質2011

    • Author(s)
      河野昌仙
    • Organizer
      特定領域研究「フラストレーションが創る新しい物性」平成22年度立ち上げ全体会議
    • Place of Presentation
      理化学研究所(和光市)
    • Related Report
      2011 Research-status Report
  • [Book] モット転移解析と高温超伝導体の電子状態, 超伝導現象と高温超伝導体2013

    • Author(s)
      河野昌仙
    • Total Pages
      417
    • Publisher
      NTS
    • Related Report
      2013 Final Research Report
  • [Book] モット転移解析と高温超伝導体の電子状態(超伝導現象と高温超伝導の第3編 第1章 第3節)2013

    • Author(s)
      河野昌仙
    • Total Pages
      8
    • Publisher
      株式会社 エヌ・ティ・エス
    • Related Report
      2012 Research-status Report
  • [Book] どのようにしてモット転移の本質が明らかになったのか(超電導Web21の2012年6月号の読者の広場Q&A)2012

    • Author(s)
      河野昌仙
    • Total Pages
      2
    • Publisher
      国際超電導産業技術センター
    • Related Report
      2012 Research-status Report
  • [Remarks] 河野昌仙のホームページ

    • URL

      http://www.nims.go.jp/mana/members/personal/m_kohno/Japanese/menu/mhome.htm

    • Related Report
      2013 Final Research Report
  • [Remarks] 河野昌仙のホームページ

    • URL

      http://www.nims.go.jp/mana/members/personal/m_kohno/Japanese/menu/mhome.htm

    • Related Report
      2013 Annual Research Report
  • [Remarks] 河野昌仙のホームページ

    • URL

      http://www.nims.go.jp/mana/members/personal/m_kohno/Japanese/menu/mhome.htm

    • Related Report
      2012 Research-status Report
  • [Remarks]

    • URL

      http://www.nims.go.jp/mana/members/personal/m_kohno/Japanese/menu/mhome.htm

    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2020-05-15  

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