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Pressure-induced electronic transition in rare earth compounds

Research Project

Project/Area Number 20900131
Allocation TypeSingle-year Grants
Research InstitutionKyushu University

Principal Investigator

OOMI Gendo  九州大学, 理学研究院, 教授 (00111146)

Co-Investigator(Kenkyū-buntansha) ISHIDA Kiyotaka  九州大学, 比較社会文化研究院, 准教授 (06010860)
石田 清隆  九州大学, 比較社会文化研究院, 准教授 (60108602)
大橋 政司  金沢大学, 自然科学, 准教授 (10336000)
櫻井 浩  群馬大学, 工学部, 准教授 (80251122)
Project Period (FY) 2008
Project Status Completed (Fiscal Year 2008)
Keywords量子臨界現象 / 圧力誘起超伝導 / 巨大磁気抵抗
Outline of Final Research Achievements

本研究は希土類元素が持つf電子の特異な性質に着目し、圧力、磁場、低温(および高温)を同時に印加したいわゆる複合極限環境を実現する事によって固体の持つ電子相関の大きさを制御し、新奇物質及び物性の探索を行うことを目的とした。本研究によって層状希土類化合物における圧力誘起超伝導の発見、特異な磁気秩序の圧力依存性の解明、新しい希土類化合物の高圧合成および希土類を含んだナノ層状多層膜の巨大磁気抵抗の物性を明らかにした。

Report

(2 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • Research Products

    (25 results)

All 2009 2008

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (16 results)

  • [Journal Article] Anisotropic Lattice Compression and Possible Valence Transition in Kdo Compound CeAu_2Si_22009

    • Author(s)
      Mio Ohmura, Kumiko Sakai, To mohito Nakano, Hidenori Miyag awa, Gendo Oomi, Isamu Sato,T akemi Komatsubara,Haruyoshi A oki,Yuji Matsumoto and Yoshiya Uwatoko
    • Journal Title

      J. Magn. Soc. Jpn 33

      Pages: 31-34

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Partial Gap of SDW in Ce(Ru_<1-x>Rh_x)_2Si_22009

    • Author(s)
      Tomohito Nakano, Shigeyuki Mu rayama and Gendo Oomi
    • Journal Title

      J. Magn. Soc. Jpn 33

      Pages: 35-37

    • NAID

      110007115249

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hall effect in CeAl_2 under high pressure2009

    • Author(s)
      Hidenori Miyagawa, Masashi Oh ashi, Tomohito Nakano, Gendo Oomi, Isamu Satoh and Takemi Komatsubara
    • Journal Title

      J. Phys. : Conf. Ser. 150

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermal expansion and magnetostriction of the concentrated Kondo corn pound CePtSi_22009

    • Author(s)
      Tomohito Nakano, Gendo Oomi and Tetsuya Takeuchi
    • Journal Title

      J. Phys. : Conf. Ser. 150

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The negative magnetoresistance of Fe/Tb magnetic multilayer2009

    • Author(s)
      Masashi Ohashi, Gendo Oomi, K atsuyoshi Takano, Hiroshi Sakur ai, Fumitake Itoh, Eiji Ohmichi and Toshihito Osada
    • Journal Title

      J. Phys. : Conf. Ser. 150

    • NAID

      120006655912

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electronic states of single crystal CeAl2 near the pressure-induced quan turn critical point2008

    • Author(s)
      H.Miyagawa,G.Oomi,M.Ohashi,I. Satoh,T.Komatsubara,M.Hedo and Y.Uwatoko
    • Journal Title

      Phys.Rev.B 78

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The enhanced negative magnetoresistance of Fe/Tb multilayer at multie xtreme conditions2008

    • Author(s)
      M.Ohashi,G.Oomi,E.Ohmichi,T.Os ada,K.Takano,H.Sakurai and F.Itoh
    • Journal Title

      J.Appl.Phys. 104

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Elastic anomalies of SmRu_4P_<12> under high pressure and magnetic field2008

    • Author(s)
      P. Sun, Y. Nakanishi, T. Fujino, M. Nakamura, M. Ohashi, G. Oomi, C. Sekine, I. Shirotani, and M. Yoshizawa
    • Journal Title

      Physica B 403

      Pages: 1619-1621

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of pressure cell for specific heat measurement at low temp erature and high Magnetic field2008

    • Author(s)
      T. Kawae, K. Yaita, Y. Yoshida, Y. Inagaki, M. Ohashi, G. Oomi, K. Matsubayashi, T. Matsumoto, and Y. Uwatoko
    • Journal Title

      Rev. Sci. Instrum 80

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] CePtSi_2の圧力効果2009

    • Author(s)
      中野智仁, 大橋政司, 松林和幸, 上床美也, 巨海玄道
    • Organizer
      日本物理学会 : 第64回年次大会
    • Place of Presentation
      立教大学(東京)
    • Year and Date
      2009-03-28
    • Related Report
      2008 Annual Research Report
  • [Presentation] CeAu_2Si_2の高圧下に磁気特性2008

    • Author(s)
      酒井久美子, 大村美央, 中野智仁, 上床美也, 松林和幸, 青木晴善, 松本祐司, 小松原武美, 佐藤伊佐務, 巨海玄道
    • Organizer
      第114回日本物理学会九州支部例会
    • Place of Presentation
      福岡工業大学(福岡市)
    • Year and Date
      2008-12-06
    • Related Report
      2008 Annual Research Report
  • [Presentation] Fe/Cr人工格子のGMR圧力依存性に対するイオン照射効果2008

    • Author(s)
      弥生達彦, 中野智仁, 巨海玄道, 相良建至, 香野淳, 田尻恭之, 斎藤今朝美, 三谷誠司, 高梨弘毅
    • Organizer
      第114回日本物理学会九州支部例会
    • Place of Presentation
      福岡工業大学(福岡市)
    • Year and Date
      2008-12-06
    • Related Report
      2008 Annual Research Report
  • [Presentation] CePtSi_2の圧力下の輸送特性2008

    • Author(s)
      中野智仁, 大橋政司, 松林和幸, 上床美也, 巨海玄道
    • Organizer
      第114回日本物理学会九州支部例会
    • Place of Presentation
      福岡工業大学(福岡市)
    • Year and Date
      2008-12-06
    • Related Report
      2008 Annual Research Report
  • [Presentation] Observation of pressure-induced quantum critical point in Fe_<70>Ni_<30> invarallo2008

    • Author(s)
      Gendo Oomi, Ryohei Saito, Yosh iyuki Fuchizaki
    • Organizer
      The 4th Asian Conference on High Pressure Research
    • Place of Presentation
      Seoul National University (Korea)
    • Year and Date
      2008-10-04
    • Related Report
      2008 Annual Research Report
  • [Presentation] CePtSi_2の圧力効果2008

    • Author(s)
      中野智仁, 大橋政司, 松林和幸, 上床美也, 巨海玄道
    • Organizer
      日本物理学会2008年秋 : 「秋季大会」
    • Place of Presentation
      岩手大学(盛岡市)
    • Year and Date
      2008-09-22
    • Related Report
      2008 Annual Research Report
  • [Presentation] 高圧下におけるCeAu_2Si_2(単結晶)の磁性と伝導II2008

    • Author(s)
      大村美央, 酒井久美子, 中野智仁, 松林和幸, 上床美也, 佐藤伊佐務, 松本裕司, 青木晴善, 小松原武美, 巨海玄道
    • Organizer
      日本物理学会2008年秋 : 「秋季大会」
    • Place of Presentation
      岩手大学(盛岡市)
    • Year and Date
      2008-09-21
    • Related Report
      2008 Annual Research Report
  • [Presentation] イオン照射されたFe/Cr人工格子の高圧下における巨大磁気抵抗2008

    • Author(s)
      弥生達彦, 相良建至, 巨海玄道, 斎藤今朝美, 三谷誠司, 高梨弘毅, 前田幸重
    • Organizer
      第32回日本磁気学会学術講演会
    • Place of Presentation
      東北学院大学(多賀城市)
    • Year and Date
      2008-09-14
    • Related Report
      2008 Annual Research Report
  • [Presentation] 高圧下におけるCeAu_2Si_2単結晶の磁気特性2008

    • Author(s)
      酒井久美子, 大村美央, 中野智仁, 巨海玄道, 佐藤伊佐務, 小松原武美, 青木晴善, 松本祐司
    • Organizer
      第32回日本磁気学会学術講演会
    • Place of Presentation
      東北学院大学(多賀城市)
    • Year and Date
      2008-09-13
    • Related Report
      2008 Annual Research Report
  • [Presentation] Ce(Ru_<1-x>Rh_x)_2Si_2におけるSDW相の量子臨界領域2008

    • Author(s)
      中野智仁, 村山茂幸, 巨海玄道
    • Organizer
      第32回日本磁気学会学術講演会
    • Place of Presentation
      東北学院大学(多賀城市)
    • Year and Date
      2008-09-13
    • Related Report
      2008 Annual Research Report
  • [Presentation] Effect of Pressure on the Anomalous Magnetoreisitance and Antiferromagnetism of Single Crystal GdB_42008

    • Author(s)
      G. Oomi, M. Ohashi and B. Cho
    • Organizer
      16th International Symposium on Boron, B orides and Related Materials
    • Place of Presentation
      Kunibiki Messe, Matsue, Shi mane, Japan
    • Year and Date
      2008-09-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] Anisotoropic Kondo Properties of Heavy Fermion Borocarbide YbNi_2B_2C under High Pressure2008

    • Author(s)
      Y. Sakigawa, H. Akiyama, H. Miyagawa, G. Oomi, B. Cho
    • Organizer
      16th International Symposium on Boron, B orides and Related Materials
    • Place of Presentation
      Kunibiki Messe, Matsue, Shi mane, Japan
    • Year and Date
      2008-09-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] Effect of Pressure and Magnetic Field on the Electrical Resis tivity of TbB_62008

    • Author(s)
      T. Sakai and G. Oomi
    • Organizer
      16th International Symposium on Boron, B orides and Related Materials
    • Place of Presentation
      Kunibiki Messe, Matsue, Shimane, Japan
    • Year and Date
      2008-09-08
    • Related Report
      2008 Annual Research Report
  • [Presentation] Hall effect in CeAl2 under high pressure2008

    • Author(s)
      H. Miyagawa, M. Ohashi, T. Nakano, G. Oomi, I. Sato h, and T. Komatsubara
    • Organizer
      the 25th International Conference on Low Temperature Physics
    • Place of Presentation
      RAI Conference Center, AMS TERDAM (Netherlands)
    • Year and Date
      2008-08-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] Thermal expansion and magnetostriction of Kondo compound CePtSi_22008

    • Author(s)
      T. Nakano, T. Takeuchi, an d G. Oomi
    • Organizer
      the 25th International Conference on Low Temperature Physics
    • Place of Presentation
      RAI Conference Center, AMS TERDAM (Netherlands)
    • Year and Date
      2008-08-08
    • Related Report
      2008 Annual Research Report
  • [Presentation] CeAu_2Si_2の反強磁性に及ぼす圧力・磁場効果22008

    • Author(s)
      酒井久美子, 巨海玄道, 佐藤伊佐務, 小松原武美, 青木晴善, 松本祐司
    • Organizer
      第25回希土類学会
    • Place of Presentation
      タワーホール船堀(東京)
    • Year and Date
      2008-05-25
    • Related Report
      2008 Annual Research Report

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Published: 2010-06-11   Modified: 2016-11-18  

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