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Theoretical studies on Fermi surface of noncentrosymmetric strongly correlated electron system and symmetrization with double space group

Research Project

Project/Area Number 19540379
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionKyoto Sangyo University

Principal Investigator

YAMAGAMI Hiroshi  Kyoto Sangyo University, 理学部, 教授 (20239867)

Research Collaborator TOSHIMITU Takafumi  京都産業大学, 理学研究科, 修士
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsバンド構造 / フェルミ面 / 反転対称性 / セリウム化合物 / バンド理論 / 相対論 / 電子構造 / フェネミ面 / CeIrSi3 / LaIrSi3
Research Abstract

固体の電子構造は、原子が周期的に並び、外殻軌道にある電子が重なり合うことから、エネルギーバンドを形成する。固体の空間反転対称性が破れた場合は、磁気的性質がなくても電子のもつスピン状態が分裂する。そのような特殊な状態を理論的に考慮して、反転対称性の破れた化合物の電子構造を第一原理計算できる相対論的バンド理論を構築した。いくつかの反転対称性の破れた化合物において、「金属の顔」であるフェルミ面の形状が角度分解光電子分光の実験で測定されたので、その特徴を理論計算から初めて解明した。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (19 results)

All 2009 2008 2007 2006

All Journal Article (8 results) (of which Peer Reviewed: 8 results) Presentation (11 results)

  • [Journal Article] Pressure-Induced Superconductivity in Antiferromanet CePd5Al22008

    • Author(s)
      H. Yamagami(11)
    • Journal Title

      Journal of the Physical Society of Japan 77

      Pages: 43701-43701

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Direct Observation of Dispersive Kondo Resonance Reaks in a Heavy-Fermion Syatems2008

    • Author(s)
      H. Yamagami(9)
    • Journal Title

      Physical Review Letters 100

      Pages: 176402-176402

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Direct Observation of Dispersive Kondo Resonance Peaks in a Heavy-Fermion System2008

    • Author(s)
      H. J. Im
    • Journal Title

      Physical Review Letters 100

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] de Haas-van Alphen Effect in LaFePO with Two-Demensional Cylindrical Fermi Surfaces2008

    • Author(s)
      H. Sugawara
    • Journal Title

      Journal of the Physical Society of Japan 77

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pressure-Induced Superconductivity in Antiferromagnet CePd5A122008

    • Author(s)
      F. Honda
    • Journal Title

      Journal of the Physical Society of Japan 77

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electronic Band Structure and Fermi surface of Heavy-Fermion Neptunium Superconductor NpPd5Al22007

    • Author(s)
      H. Yamagami, D. Aoki, Y. Haga and Y. Onuki
    • Journal Title

      Journal of the Physical Society ofJapan 76

      Pages: 83708-83708

    • NAID

      210000106825

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Electronic Band Structure and Fermi Surface of Heavy-Fermion Neptunium Superconductor NpPd_5Al_22007

    • Author(s)
      H. Yamagami
    • Journal Title

      Journal of the Physical Society of Japan 76

    • NAID

      110006366837

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Itinerant to localized transition off electrons in the antiferromagnetic superconductor UPd_2Al_32007

    • Author(s)
      S-I. Fujimori
    • Journal Title

      Nature Physics 3

      Pages: 618-622

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] 軟X線光電子分光法によるf電子系化合物のフェルミ面2009

    • Author(s)
      山上浩志
    • Organizer
      新学術研究会
    • Place of Presentation
      東京大学物性研究所
    • Year and Date
      2009-03-09
    • Related Report
      2008 Final Research Report
  • [Presentation] 軟X線光電子分光法によるf電子系化合物のフェルミ面2009

    • Author(s)
      山上 浩志
    • Organizer
      新学術領域研究会
    • Place of Presentation
      東京大学物性研究所
    • Year and Date
      2009-03-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] Fermiology off-electron systems based on soft x-ray photoemission spectroscopy and band calculation2008

    • Author(s)
      Hiroshi Yamagami
    • Organizer
      Joint Workshop on Heavy Fermion Systems 2008
    • Place of Presentation
      Sungkyunkawan, Korea
    • Year and Date
      2008-10-03
    • Related Report
      2008 Final Research Report
  • [Presentation] Fermiology of f-electron systems based on soft x-ray photoemission spectroscopy and band calculation2008

    • Author(s)
      Hiroshi Yamagami
    • Organizer
      Joint Workshop on Heavy Fermion Systems 2008
    • Place of Presentation
      Sungkyunkwan, Korea
    • Year and Date
      2008-10-03
    • Related Report
      2008 Annual Research Report
  • [Presentation] 軟X線光電子分光法とバンド理論によるf電子系価棒物のフェルミオロジー2008

    • Author(s)
      山上浩志
    • Organizer
      物性研究所短期研究会
    • Place of Presentation
      東京大学物性研究所
    • Year and Date
      2008-07-24
    • Related Report
      2008 Final Research Report
  • [Presentation] 軟X線光電子分光法とバンド理論によるf電子系化合物のフェルミオロジー2008

    • Author(s)
      山上 浩志
    • Organizer
      物性研究所短期研究会
    • Place of Presentation
      東京大学物性研究所
    • Year and Date
      2008-07-24
    • Related Report
      2008 Annual Research Report
  • [Presentation] 角度分解共鳴電子分光によるCeIrSi3、LaIrSi3の電子構造の研究2008

    • Author(s)
      利光文孝
    • Organizer
      日本物理学会第63回年次会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-23
    • Related Report
      2007 Annual Research Report
  • [Presentation] 酸化物半導体ZnOの軟X線角度分解光電子分光2008

    • Author(s)
      小林正起
    • Organizer
      日本物理学会第63回年次会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-23
    • Related Report
      2007 Annual Research Report
  • [Presentation] 角度分解共鳴電子分光によるCeIrSi3の電子構造の研究2007

    • Author(s)
      利光文孝
    • Organizer
      日本物理学会第62回年次会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] 角度分解共鳴光電子分光によるCeIrSi3、LaIrSi3の電子構造の研究2007

    • Author(s)
      利光孝文
    • Organizer
      第63回年次会
    • Place of Presentation
      近畿大学
    • Year and Date
      2007-03-23
    • Related Report
      2008 Final Research Report
  • [Presentation] 角度分会光電子分光によるCeIrSi3の電子構造2006

    • Author(s)
      利光孝文
    • Organizer
      日本物理学会第62回年次会
    • Place of Presentation
      北海道大学
    • Year and Date
      2006-09-21
    • Related Report
      2008 Final Research Report

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Published: 2007-04-01   Modified: 2020-05-15  

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