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Commensurate-Incommensurate change by frustration

Research Project

Project/Area Number 18540376
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Mathematical physics/Fundamental condensed matter physics
Research InstitutionKyushu University

Principal Investigator

NOMURA Kiyohide  Kyushu University, 理学研究院, 准教授 (70222205)

Research Collaborator 村島 隆浩  九州大学、京都大学
大塚 博巳  首都大学東京
Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,970,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥570,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2006: ¥1,500,000 (Direct Cost: ¥1,500,000)
Keywords整合-非整合遷移 / 特異点の融合-分裂 / ジョルダン標準形 / AKLT模型 / 多体相互作用 / 整合 非整合遷移 / 極の融合-分裂 / 3体相互作用 / 三角格子 / 準長距離秩序 / ベクトルサインゴルドンモデル / ANNNIモデル / 転送行列 / AKLT / エッジ状態 / 動的構造因子
Research Abstract

1. AKLT模型と整合-非整合(C-IC)遷移
S=1 bilinaer-biqudratic(BLBQ)鎖で、C-IC遷移はちょうどAKLT模型に対応する点で起きる. このメカニズムを構造因子の複素平面での特異点の融合-分裂として説明し、数値計算を精度良く説明することに成功した.
2. 次近接相互作用のある古典1次元イジングモデル(1D NNNI)での有限温度でのC-IC遷移
!D NNNIモデルでの有限温度のC-IC遷移を考察し、C-IC遷移の理論を発展させた.
3体相互作用のある2次元3角格子上の6状態クロックモデルの相転移
大塚氏(首都大学東京)との共同研究で、3体相互作用のある2次元3角格子上の6状態クロックモデルの相転移を扱った.このモデルでは低温の秩序相と高温の無秩序相の間に、準長距離秩序を持つ中間相(c=2CFT)がある。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (13 results)

All 2009 2008 2007 2006

All Journal Article (7 results) (of which Peer Reviewed: 4 results) Presentation (6 results)

  • [Journal Article] Critical intermediate phase and phase transitions in a triangular-lattice three-spin interaction model : Level-Spectroscopy approach2008

    • Author(s)
      H. Otsuka and K. Nomura
    • Journal Title

      J.Phys A Vol.41

      Pages: 375001-375001

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Critical intermediate phase and phase transitions in atriangular-lattice three-spin interaction model : Level-Spectroscopy approach2008

    • Author(s)
      H. Otsuka, K. Nomura
    • Journal Title

      J. Phys. A : Math. Theor. 41

      Pages: 375001-375001

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cancellation of oscillatory behaviors in incommensurate region2007

    • Author(s)
      T. Murashima and K. Nomura
    • Journal Title

      J. Phys. C Vol.19

      Pages: 145210-145210

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Cancellation of oscillatory behaviors in incommensurate region2007

    • Author(s)
      T.Murashima, K.Nomura
    • Journal Title

      J. Phys. Condens. Matter 19

      Pages: 145210-145210

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Global phase diagram and six-state clock universality behavior in the triangular antiferromagnetic Ising model with an isotropic next-nearest-neighbor coupling : Level-spectroscopy approach2007

    • Author(s)
      H.Otsuka, Y.Okabe, K.Nomura
    • Journal Title

      Physical Review E 74

      Pages: 11104-11104

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Incommensurability and edge states in the one-dimensional S=1 bilinear-biquadratic model2006

    • Author(s)
      T. Murashima and K. Nomura
    • Journal Title

      Phys. Rev B Vol.73

      Pages: 214431-214431

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Incommensurability and edge states in the one-dimensional S=1 bilinear-biquadratic model2006

    • Author(s)
      T.Murashima, K.Nomura
    • Journal Title

      Physical Review B 73

      Pages: 214431-214431

    • Related Report
      2006 Annual Research Report
  • [Presentation] Theory of commensurate-incommensurate change2009

    • Author(s)
      Kiyohide Nomura
    • Organizer
      PSM2009WS, Intenrnational Workshop on Quantum Critical Phenomena and Novel Phases in Superclean Materia, lan
    • Place of Presentation
      Honoluku, USA
    • Year and Date
      2009-10-13
    • Related Report
      2008 Final Research Report
  • [Presentation] Theory of commensurate-incommensurate change2009

    • Author(s)
      Kiyohide Ncmura
    • Organizer
      PSM2009WS, Intenrnational Workshop onQuantum Critical Phenomena and NovelPhases in Superclean Material
    • Place of Presentation
      Honoluku, USA
    • Related Report
      2008 Annual Research Report
  • [Presentation] 次近接相互作用のある一次元イジングモデルの整合-非整合遷移2008

    • Author(s)
      小林敬吾・野村清英
    • Organizer
      日本物理学科第63回年会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-28
    • Related Report
      2008 Final Research Report
  • [Presentation] 次近接相互作用のある一次元イジングモデルの整合-非整合遷移II2008

    • Author(s)
      野村清英・小林敬語
    • Organizer
      日本物理学会第63回年会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-28
    • Related Report
      2008 Final Research Report
  • [Presentation] 次近接相互作用のある1次元イジングモデルの整合-非整合遷移2008

    • Author(s)
      小林 敬吾・野村 清英
    • Organizer
      日本物理学科第63回年会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-28
    • Related Report
      2007 Annual Research Report
  • [Presentation] 次近接相互作用のある1次元イジングモデルの整合-非整合遷移II2008

    • Author(s)
      野村 清英・小林 敬吾
    • Organizer
      日本物理学科第63回年会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-28
    • Related Report
      2007 Annual Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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