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Study of novelphase transition on the anisotropic Kondo semiconductor with caged structure

Research Project

Project/Area Number 23840033
Research Category

Grant-in-Aid for Research Activity Start-up

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

Principal Investigator

MURO Yuji  富山県立大学, 工学部教養教育, 准教授 (50385530)

Project Period (FY) 2011 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords物性実験 / 近藤半導体 / 反強磁性 / 中性子散乱 / 元素置換効果 / 希土類 / 新奇な相転移 / カゴ状構造
Research Abstract

Ternary Ce compounds CeT2Al10(T=Ru and Os) are new Kondo semiconductors which undergo an antiferromagnetic transition. The mechanism of the antiferromagnetic transition in CeT2Al10is expected to be different with typical Ce antiferromagnets because of extraordinary high transition temperature 27K for T=Ru and 28.5K for T=Os. In order to clarify the novel antiferromagnetic transition, we performed the study of neutron scattering, photoemission and substitution effect on T and Al. From this study, the magnetic transition in CeT2Al10should originate from unique electronic structure and the anisotropy of c-f hybridization.

Report

(3 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • Research Products

    (22 results)

All 2013 2012 2011 Other

All Journal Article (12 results) (of which Peer Reviewed: 12 results) Presentation (10 results)

  • [Journal Article] Crystal field ground state of the orthorhombic Kondo semiconductors CeOs2Al10 and CeFe2Al102013

    • Author(s)
      F. Strigari
    • Journal Title

      Phys. Rev. B

      Volume: 87 Issue: 12 Pages: 1251191-6

    • DOI

      10.1103/physrevb.87.125119

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crystal-field ground state of the orthorhombic Kondo insulator CeRu2Al102012

    • Author(s)
      F. Strigari
    • Journal Title

      Phys. Rev. B

      Volume: 86 Issue: 8 Pages: 4-4

    • DOI

      10.1103/physrevb.86.081105

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Fe substitution effect on the phase transition and hybridization gap in CeOs2Al102012

    • Author(s)
      Y. Muro
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 391 Pages: 4-4

    • DOI

      10.1088/1742-6596/391/1/012049

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Anisotropic gap formation in CeM2Al10 (M = Ru, Os)2012

    • Author(s)
      S. Kimura
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 391 Pages: 0120301-4

    • DOI

      10.1088/1742-6596/391/1/012030

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crystal-field effect on anisotropic magnetic properties of CeT2A110 (T = Ru and os)2012

    • Author(s)
      K. Yutani
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 391 Pages: 0120701-4

    • DOI

      10.1088/1742-6596/391/1/012070

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interplay between crystal electric field and magnetic exchange anisotropies in the heavy-fermion antiferromagnet YbRhSb under pressure2012

    • Author(s)
      K.Umeo
    • Journal Title

      Phys.Rev.B

      Volume: 85 Issue: 2 Pages: 24412-24412

    • DOI

      10.1103/physrevb.85.024412

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optical study of charge instability in CeRu_2Al_<10> in comparison with CeOs_2Al_<10> and CeFe_2Al_<10>2011

    • Author(s)
      S.Kimura
    • Journal Title

      Phys.Rev.B

      Volume: 84 Issue: 16 Pages: 165125-165125

    • DOI

      10.1103/physrevb.84.165125

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pressure effect on the anomalous phase transition in CeOs_2Al_<10>2011

    • Author(s)
      K.Umeo
    • Journal Title

      J.Phys.Soc.Jpn.

      Volume: 80 Issue: 6 Pages: 64709-64709

    • DOI

      10.1143/jpsj.80.064709

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic and transport properties of ROs_2Al_<10> (R=Pr, Nd, Sm, and Gd)2011

    • Author(s)
      Y.Muro
    • Journal Title

      J.Phys.Soc.Jpn.

      Volume: 80SA Issue: Suppl.A Pages: SA021-SA021

    • DOI

      10.1143/jpsjs.80sa.sa021

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Elastic properties of cage compound CeOs_2Al_<10>2011

    • Author(s)
      I.Ishii
    • Journal Title

      J.Phys.Soc.Jpn.

      Volume: 80SA Issue: Suppl.A Pages: SA045-SA045

    • DOI

      10.1143/jpsjs.80sa.sa045

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structural and magnetic transitions in the crystalline approximant Cd_6Sm2011

    • Author(s)
      R.Tamura
    • Journal Title

      Phys.Rev.B

      Volume: 85 Issue: 1

    • DOI

      10.1103/physrevb.85.014203

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic structure and its long-time variation in the multistep metamagnet CeIr_3Si_22011

    • Author(s)
      T.Moyoshi
    • Journal Title

      J.Phys.Soc.Jpn.

      Volume: 81 Issue: 1 Pages: 014704-014704

    • DOI

      10.1143/jpsj.81.014704

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] 反強磁性近藤半導体CeRu2Al10のAlサイト置換効果2013

    • Author(s)
      室裕司, 飛弾和也, 福原忠, 湯谷圭亮,高畠敏郎
    • Organizer
      日本物理学会 第68回年次大会
    • Place of Presentation
      広島大学東広島キャンパス
    • Year and Date
      2013-03-27
    • Related Report
      2012 Final Research Report
  • [Presentation] Anisotropic c-f hybridization in a Kondo semiconductor CeFe2Al102012

    • Author(s)
      Y. Mu r o, K. Yutani, J. Kajino, T. Takabatake
    • Organizer
      The 19th International Conference on Magnetism
    • Place of Presentation
      釜山、韓国
    • Year and Date
      2012-07-09
    • Related Report
      2012 Final Research Report
  • [Presentation] Cd_6Sm近似結晶における逐次磁気相転移2011

    • Author(s)
      室裕司
    • Organizer
      日本物理学会2011秋季大会
    • Place of Presentation
      富山大学(富山市)
    • Year and Date
      2011-09-22
    • Related Report
      2011 Annual Research Report
  • [Presentation] Fe substitution effect on the phase transition and hybridization gap in CeOs_2Al_<10>2011

    • Author(s)
      室裕司
    • Organizer
      強相関電子系国際会議SGES2011
    • Place of Presentation
      ケンブリッジ(イギリス)
    • Year and Date
      2011-08-31
    • Related Report
      2011 Annual Research Report
  • [Presentation] Fe substitution effect on the phase transition and hybridization gap in CeOs2Al102011

    • Author(s)
      Y. Mu r o, K. Yutani, J. Kajino, T. Takabatake
    • Organizer
      International Conference on StronglyCorrelated Electron Systems 2011
    • Place of Presentation
      ケンブリッジ、イギリス
    • Year and Date
      2011-08-30
    • Related Report
      2012 Final Research Report
  • [Presentation] 正方晶Sc2Fe3Si5型Ce化合物Ce2Ru3Ga5の磁気的性質

    • Author(s)
      室 裕司
    • Organizer
      日本物理学会 2012秋季大会
    • Place of Presentation
      横浜国立大学常盤台キャンパス
    • Related Report
      2012 Annual Research Report
  • [Presentation] 反強磁性近藤半導体CeT2Al10における異方的混成とスピン波励起

    • Author(s)
      室 裕司
    • Organizer
      新学術研究「重い電子系の形成と秩序化」ワークショップ~カゴ状構造に宿る強相関物性~
    • Place of Presentation
      首都大学東京南大沢キャンパス
    • Related Report
      2012 Annual Research Report
  • [Presentation] 反強磁性近藤半導体CeRu2Al10のGaおよびSi置換効果

    • Author(s)
      室 裕司
    • Organizer
      新学術研究「重い電子系の形成と秩序化」第4回研究会
    • Place of Presentation
      東京工業大学大岡山キャンパス
    • Related Report
      2012 Annual Research Report
  • [Presentation] 反強磁性近藤半導体CeRu2Al10のAlサイト置換効果

    • Author(s)
      室 裕司
    • Organizer
      日本物理学会 第68回年次大会
    • Place of Presentation
      広島大学東広島キャンパス
    • Related Report
      2012 Annual Research Report
  • [Presentation] Anisotropic c-f hybridization in a Kondo semiconductor CeFe2Al10

    • Author(s)
      室 裕司
    • Organizer
      The 19th International Conference on Magnetism
    • Place of Presentation
      釜山 (韓国)
    • Related Report
      2012 Annual Research Report

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Published: 2011-09-05   Modified: 2020-05-15  

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