Electronic states of CeRhSi_3 under high pressure

2010 Fiscal Year Final Research Report

• Project/Area Number: 20540362
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: National Institute for Materials Science
• Principal Investigator: TERASHIMA Taichi National Institute for Materials Science, ナノスケール物質萌芽ラボ, 主席研究員 (40343834)
• Project Period (FY): 2008 – 2010
• Keywords: 強相関系 / f電子系 / 超伝導 / 高圧力

Research Abstract

We have performed de Haas-van Alphen oscillation measurements on CeRhSi_3 and have shown that Ce 4f electrons are itinerant even in the antiferromagnetic state at ambient pressure. We have also established that EuFe_2As_2 is an antiferromagnetic bulk superconductor under high pressure and have determined its high-pressure phase diagram and upper critical field of superconductivity.

Research Products

• [Journal Article] Upper critical field of the pressure-induced superconductor EuFe_2As_2 (2011)
  • Author(s): Nobuyuki Kurita, Motoi Kimata, Kota Kodama, Atsushi Harada, Megumi Tomita, Hiroyuki S.Suzuki, Takehiko Matsumoto, Keizo Murata, Shinya Uji, Taichi Terashima
  • Journal Title: Phys.Rev.B 83 Pages: 100501(R), 4
  • Peer Reviewed
• [Journal Article] High-Pressure Electrical Resistivity Measurements of EuFe_2As_2 Single Crystals (2010)
  • Author(s): N Kurita, M Kimata, K Kodama, A Harada, M Tomita, H S Suzuki, T Matsumoto, K Murata, S Uji, T Terashima
  • Journal Title: J.Phys.: Conf.Ser. 273 Pages: 012098, 5
  • Peer Reviewed
• [Journal Article] Anomalous behavior of the dHvA oscillations in Ce_xLa_1_xRu_2Si_2 (2010)
  • Author(s): Y Matsumoto, N Kimura, T Komatsubara, H Aoki, M Kimata, T Terashima, S Uji
  • Journal Title: J.Phys.: Conf.Ser. 200 Pages: 012115, 4
  • Peer Reviewed
• [Journal Article] Pressure-induced antiferromagnetic bulk superconductor EuFe_2As_2 (2010)
  • Author(s): Taichi Terashima, Hiroyuki S.Suzuki, Megumi Tomita, Motoi Kimata, Hidetaka Satsukawa, Atsushi Harada, Kaori Hazama, Takehiko Matsumoto, Keizo Murata, Shinya Uji
  • Journal Title: Physica C 470 Pages: S443-S444
  • Peer Reviewed
• [Journal Article] Novel superconducting properties on noncentrosymmetric heavy fermion CeRhSi_3 (2010)
  • Author(s): N.Kimura, T.Sugawara, H.Aoki, T.Terashima
  • Journal Title: Physica C 470 Pages: S529-S532
  • Peer Reviewed
• [Journal Article] Magnetotransport Studies of EuFe_2As_2 : The Influence of the Eu2+ Magnetic Moments (2010)
  • Author(s): Taichi Terashima, Nobuyuki Kurita, Akiko Kikkawa, Hiroyuki S. Suzuki, Takehiko Matsumoto, Keizo Murata, Shinya Uji
  • Journal Title: J.Phys.Soc.Jpn. 79 Pages: 103706, 4
  • Peer Reviewed
• [Journal Article] Anomalous Behavior of the Upper-Critical-Field in Heavy-Fermion Superconductor CeRhSi_3 (2010)
  • Author(s): Tetsuya Sugawara, Noriaki Kimura, Haruyoshi Aoki, Florence Levy, Ilya Sheikin, Taichi Terashima
  • Journal Title: J.Phys.Soc.Jpn. 79 Pages: 063701, 4
  • Peer Reviewed
• [Journal Article] DHvA effect study on the metamagnetic transitions in Ce_xLa_<1-x>Ru_2Si_2 (2009)
  • Author(s): Y Matsumoto, N Kimura, T Komatsubara, H Aoki, T Terashima, S Uji
  • Journal Title: J.Phys.: Conf.Ser. 150 Pages: 042006, 4
  • Peer Reviewed
• [Journal Article] EuFe_2As_2 under High Pressure : An Antiferromagnetic Bulk Superconductor (2009)
  • Author(s): Taichi Terashima, Motoi Kimata, Hidetaka Satsukawa, Atsushi Harada, Kaori Hazama, Shinya Uji, Hiroyuki S.Suzuki, Takehiko Matsumoto, Keizo Murata
  • Journal Title: J.Phys.Soc.Jpn. 78 Pages: 083701-1-083701-4
  • Peer Reviewed
• [Journal Article] Fermi surface in LaRhSi_3 and CeRhSi_3 (2008)
  • Author(s): T.Terashima, M.Kimata, S.Uji, T.Sugawara, N.Kimura, H.Aoki, H.Harima
  • Journal Title: Phys.Rev.B 78 Pages: 205107-1-205107-10
  • Peer Reviewed
• [Journal Article] Fermi Surface Properties of CeRu_2(Si_<1-x>Ge_x)_2 in Magnetic Fields above the Metamagnetic Transitions (2008)
  • Author(s): M.Sugi, Y.Matsumoto, N.Kimura, T.Komatsubara, H.Aoki, T.Terashima, S.Uji
  • Journal Title: Phys.Rev.Lett. 101 Pages: 056401-1-056401-4
  • Peer Reviewed
• [Journal Article] Continuous Evolution of Fermi Surface Properties above Metamagnetic Transitions in Ce_xLa_<1-x>Ru_2Si_2 (2008)
  • Author(s): Yuji Matsumoto, Motoki Sugi, Noriaki Kimura, Takemi Komatsubara, Haruyoshi Aoki, Isamu Satoh, Taichi Terashima, Shinya Uji
  • Journal Title: J.Phys.Soc.Jpn. 77 Pages: 053703-1-053703-4
  • Peer Reviewed
• [Presentation] CeRhSi_3の遍歴4f電子 (2010)
  • Author(s): 寺嶋太一,栗田伸之,木俣基,山口尚秀,松本武彦,宇治進也,菅原徹也、木村憲彰、青木晴善、播磨尚朝
  • Organizer: ワークショップ～小さなフェルミ面と大きなフェルミ面～
  • Place of Presentation: 富山大学
  • Year and Date: 20100510-20100511
• [Presentation] Pressure-Induced Antiferromagnetic Bulk Superconductor EuFe_2As_2 (2009)
  • Author(s): Taichi Terashima, Hiroyuki Suzuki, Motoi Kimata, Hidetaka Satsukawa, Atsushi Harada, Kaori Hazama, Takehiko Matsumoto, Keizo Murata, Shinya Uji
  • Organizer: M2S-IX
  • Place of Presentation: Keio Plaza Hotel Tokyo, Tokyo
  • Year and Date: 20090907-20090912
• [Presentation] CeRhSi_3のフェルミ面 (2008)
  • Author(s): 寺嶋太一、木俣基、山口尚秀、松本武彦、宇治進也、菅原徹也、木村憲彰、青木晴善、播磨尚朝
  • Organizer: 物性研短期研究会「重い電子系研究の新展開」
  • Place of Presentation: 東京大学物性研究所
  • Year and Date: 20080723-20080725
• [Remarks]
  • URL: http://www.nims.go.jp/