Investigation on the duality nature of f-electron systems in the strongly correlated compounds

• Project/Area Number: 22540370
• 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: University of the Ryukyus
• Principal Investigator: MAEHIRA Takahiro 琉球大学, 理学部, 准教授 (20372807)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
• Keywords: 遍歴 / 局在 / 相対論的バンド計算 / 結晶場 / f 電子系 / 電子相関 / 磁性 / 超ウラン化合物 / j-j 結合 / f電子系 / j-j結合 / 希土類化合物 / アクチニド化合物 / 遍歴・局在

Research Abstract

The duality nature of the f electrons, i.e. itinerant or localized, is an essential issue of the strongly correlated f electron systems.The purpose of the present project is to investigate the physical properties arising from the duality nature of the f electrons in rare‐earth compounds.We derive the Fermi surface for α-Ce by a relativistic linear augmented plane wave method within the framework of a local-density approximation. The Fermi surfaces thus obtained are composed of an hole sheet and an electron sheet, all of which have no open orbits. The Fermi surface topology is consistent with the experimental results for the high-field magnetoresistance.We have also studied the physical properties arising from the itinerant or localized nature of the f electrons in other transuranium compound like PuS, PuSe, PuTe, PuRu_2、PuRh_2、PuIr_2、PuPt_2、ThSn_3、Usn_3、NpSn_3、PuSn_3、PuRh_3、PuPd_3、PuPt_3.

Research Products

• [Journal Article] The Electronic Structure and Theoretical Analysis of the de Haas-van Alphen Effect in YbSn3 (2013)
  • Author(s): Yasutomi TATETSU and Takahiro MAEHIRA
  • Journal Title: Journal of the Physical Society of Japan Volume: 82 Pages: 34709-34709
  • NAID: 210000132469
  • Peer Reviewed
• [Journal Article] Electronic Structures of Plutonium compounds with the NaCl-type monochalcogenides structure (2012)
  • Author(s): Takahiro Maehira and Yasutomi Tatetsu
  • Journal Title: Journal of Physics: Conference Series Volume: 400 Pages: 4-4
  • Peer Reviewed
• [Journal Article] Origin of the Frequency Branch of the de Haas-van Alphen Effect in CeIr2 (2012)
  • Author(s): Takahiro Maehira, Yasutomi Tatetsu, Hirochika Teruya and Eijiro Sakai
  • Journal Title: Journal of the Physical Society of Japan Volume: 81 Pages: 4-4
  • Peer Reviewed
• [Journal Article] Electronic property of ThSn3 in comparison with uranium and transuranium compounds (2012)
  • Author(s): Yasutomi Tatetsu and Takahiro Maehira
  • Journal Title: Journal of Physics: Conference Series Volume: 400 Pages: 42061-42061
  • Peer Reviewed
• [Journal Article] Origin of the Frequency Branch of the de Haas-van Alphen Effect in CeIr2 (2012)
  • Author(s): Takahiro MAEHIRA, Yasutomi TATETSU, Hirochika TERUYA and Eijiro SAKAI
  • Journal Title: Journal of the Physical Society of Japan, Supplement A Volume: 81
  • Peer Reviewed
• [Journal Article] Electronic Structure of Plutonium Compounds with the Cubic Laves Phase Structure (2012)
  • Author(s): Yasutomi TATETSU, Hirohika TERUYA, Eijiro SAKAI and Takahiro MAEHIRA
  • Journal Title: Journal of the Physical Society of Japan, Supplement A Volume: 81
  • Peer Reviewed
• [Journal Article] First-Principle Calculation for Electronic Properties of PuX3 (X=Rh, Pd, Pt) (2012)
  • Author(s): Yasutomi Tatetsu and Takahiro Maehira
  • Journal Title: Journal of Physics: Conference Series Volume: 391 Pages: 12073-12073
  • Peer Reviewed
• [Journal Article] Electronic properties of Plutonium compounds with cubic Laves phase structure (2012)
  • Author(s): Takahiro Maehira and Yasutomi Tatetsu
  • Journal Title: Journal of Physics: Conference Series Volume: 391 Pages: 12037-12037
  • Peer Reviewed
• [Journal Article] The Fermi surface of Itinerant 4f Electrons in α-Ce (2011)
  • Author(s): T.Maehira, Y.Tatetsu
  • Journal Title: J.Phys.Soc.Jpn. Volume: 80
  • Peer Reviewed
• [Journal Article] Origin of the frequency branch ε of the de Haas-van Alphen effect in UA13 (2011)
  • Author(s): Y.Tatetsu, H.Teruya, S.Shirono, T.Maehira
  • Journal Title: J.Phys.Soc.Jpn. Volume: 80
  • Peer Reviewed
• [Presentation] USn3の電子構造 (2013)
  • Author(s): 立津慶幸、眞榮平孝裕
  • Organizer: 新学術領域研究「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(東京)
• [Presentation] 二酸化アクチノイド化合物の電子構造 (2013)
  • Author(s): 眞榮平孝裕、立津慶幸
  • Organizer: 新学術領域研究「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(東京)
• [Presentation] 立方晶系Yb化合物の電子構造 (2013)
  • Author(s): 立津慶幸、眞榮平孝裕
  • Organizer: 日本物理学会2013年春季大会
  • Place of Presentation: 広島大学(広島)
• [Presentation] EuBi3の純良単結晶育成と磁性 (2013)
  • Author(s): 大貫惇睦，仲村愛，平仲裕一，辺土正人，仲間隆男，立津慶幸，眞榮平孝裕，森晶宣，三田村勝哉，三浦泰直，広瀬雄介，杉山清寛，本多史憲，竹内徹也，松田達磨，山本悦嗣，芳賀芳範
  • Organizer: 日本物理学会2013年春季大会
  • Place of Presentation: 広島大学(広島)
• [Presentation] SmSn_3 と LaSn_3 の電子構造 (2012)
  • Author(s): 眞榮平孝裕,立津慶幸
  • Organizer: 日本物理学会 2012 年秋季大会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2012-09-18
• [Presentation] URh3の電子構造 (2012)
  • Author(s): 立津慶幸, 照屋寛親, 眞榮平孝裕
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大
  • Year and Date: 2012-03-24
• [Presentation] Electronic property of ThSn3 in comparison with uranium and transuranium compounds (2012)
  • Author(s): Y. Tatetsu E. Sakai and T. Maehira
  • Organizer: International Conference on Magnetism 2012
  • Place of Presentation: Busan(Korea)
• [Presentation] Electronic structures of Plutonium compounds with the NaCl-type monochalcogenides structure (2012)
  • Author(s): T. Maehira E. Sakai and Y. Tatetsu
  • Organizer: International Conference on Magnetism 2012
  • Place of Presentation: Busan(Korea)
• [Presentation] Electronic Structure of Plutonium Compounds with the Cubic Laves Phase Structure (2012)
  • Author(s): Y. Tatetsu and T. Maehira
  • Organizer: Pu Futures 2012
  • Place of Presentation: ケンブリッジ(英国)
• [Presentation] Eu化合物の電子構造 (2012)
  • Author(s): 立津慶幸、眞榮平孝裕
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学(神奈川)
• [Presentation] SmSn3とLaSn3の電子構造 (2012)
  • Author(s): 眞榮平孝裕、立津慶幸
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学(神奈川)
• [Presentation] 立方晶f電子系のバンド計算とフェルミ面 (2012)
  • Author(s): 立津慶幸、眞榮平孝裕
  • Organizer: 新学術領域研究「重い電子系」ワークショップ〜純良単結晶育成と重い電子系のフェルミ面〜
  • Place of Presentation: 琉球大学(沖縄)
• [Presentation] EuGa4の電子状態と圧力効果 (2012)
  • Author(s): 仲村愛、平仲裕一、立津慶幸、眞榮平孝裕、辺土正人、仲間隆男、広瀬雄介、石田一裕、森晶宣、三田村勝哉、本多史憲、竹内徹也、杉山清寛、荻原政幸、摂待力生、大貫惇睦
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学(神奈川)
• [Presentation] Electronic structures of Plutonium compounds with the cubic Laves phase structure (2011)
  • Author(s): Y.Tatetsu, H.Teruya, T.Maehira
  • Organizer: TOKIMEKI 2011 International workshop on heavy fermions
  • Place of Presentation: Osaka Univ.
  • Year and Date: 2011-11-24
• [Presentation] Electronic structures of PuIr2 and CeIr2 (2011)
  • Author(s): H.Teruya, Y.Tatetsu, T.Maehira
  • Organizer: TOKIMEKI 2011 International workshop on heavy fermions
  • Place of Presentation: Osaka Univ.
  • Year and Date: 2011-11-24
• [Presentation] Origin of the frequency branch of the de Haas-van Alphen effect in CeIr2 (2011)
  • Author(s): T.Maehira, Y.Tatetsu, H.Teruya
  • Organizer: TOKIMEKI 2011 International workshop on heavy fermions
  • Place of Presentation: Osaka Univ.
  • Year and Date: 2011-11-24
• [Presentation] AnSn3(An=Th,U,Np,Pu)の電子構造とフェルミ面 (2011)
  • Author(s): 立津慶幸, 照屋寛親, 眞榮平孝裕
  • Organizer: 第11回琉球物性研究会
  • Place of Presentation: 琉球大学
  • Year and Date: 2011-11-12
• [Presentation] First-Principle Calculations for Electronic Properties of PuX3 (X=Rh, Pd, Pt) (2011)
  • Author(s): Y.Tatetsu, T.Maehira
  • Organizer: Strongly Correlated Electron Systems 2011 (SCES2011)
  • Place of Presentation: Cambridge, UK
  • Year and Date: 2011-10-02
• [Presentation] Electronic Properties of Plutonium Compounds with the Cubic Laves Phase Structure (2011)
  • Author(s): Takahiro Maehira and Yasutomi Tatetsu
  • Organizer: Strongly Correlated Electron Systems 2011(SCES2011
  • Place of Presentation: Cambridge, UK
  • Year and Date: 2011-09-30
• [Presentation] PuX(X=S,Se,Te)の電子構造 (2011)
  • Author(s): 立津慶幸, 照屋寛親, 眞榮平孝裕
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-23
• [Presentation] Puラーベス相(PuRu2, PuRh2)の電子構造 (2011)
  • Author(s): 照屋寛親, 立津慶幸, 眞榮平孝裕
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-23
• [Presentation] PuIr2とCeIr2の電子構造 (2011)
  • Author(s): 眞榮平孝裕, 立津慶幸, 照屋寛親
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-23
• [Presentation] PuX(X=S,Se,Te)の電子構造 (2011)
  • Author(s): 立津慶幸、照屋寛親、眞榮平孝裕
  • Organizer: 日本物理学会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-23
• [Presentation] Puラーベス相(PuRu_2,PuRh_2)の電子構造 (2011)
  • Author(s): 照屋寛親、立津慶幸、眞榮平孝裕
  • Organizer: 日本物理学会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-23
• [Presentation] PuIr_2とCeIr_2の電子構造 (2011)
  • Author(s): 眞榮平孝裕、立津慶幸、照屋寛親
  • Organizer: 日本物理学会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-23
• [Presentation] Electronic structures of Plutonium compounds with the NaCl-type monochalcogenides structure (2011)
  • Author(s): T.Maehira, Y.Tatetsu
  • Organizer: 26th International Conference on Low Temperature Physics (LT26)
  • Place of Presentation: Beijing, China
  • Year and Date: 2011-08-13
• [Presentation] Electronic property of ThSn3 in comparison with uranium and transuranium compounds (2011)
  • Author(s): Y.Tatetsu, T.Maehira
  • Organizer: 26th International Conference on Low Temperature Physics (LT26)
  • Place of Presentation: Beijing, China
  • Year and Date: 2011-08-13
• [Presentation] Th化合物の電子構造 (2011)
  • Author(s): 立津慶幸、眞榮平孝裕
  • Organizer: 日本物理学会
  • Place of Presentation: 新潟大学
  • Year and Date: 2011-03-27
• [Presentation] Electronic Properties of Plutonium Compounds with the Cubic Laves Phase Structure (2011)
  • Author(s): T.Maehira, Y.Tatetsu
  • Organizer: Strongly Correlated Electron Systems 2011 (SCES2011)
  • Place of Presentation: Cambridge, UK
• [Presentation] Thの電子構造とフェルミ面 (2010)
  • Author(s): 立津慶幸、眞榮平孝裕
  • Organizer: 琉球物性研究会
  • Place of Presentation: 琉球大学
  • Year and Date: 2010-12-11
• [Presentation] f電子系における遍歴性と局在性 (2010)
  • Author(s): 立津慶幸、眞榮平孝裕
  • Organizer: 日本物理学会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-23
• [Presentation] UAl_3の開軌道 (2010)
  • Author(s): 照屋寛親、城野将、立津慶幸、眞榮平孝裕
  • Organizer: 日本物理学会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-23
• [Presentation] Ceラーベス相のフェルミ面における電子成分分布 (2010)
  • Author(s): 城野将、照屋寛親、立津慶幸、眞榮平孝裕
  • Organizer: 日本物理学会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-23
• [Presentation] The Fermi surface of Itinerant 4f Electrons in α-Ce (2010)
  • Author(s): 眞榮平孝裕、立津慶幸
  • Organizer: International Conference on Heavy Electrons 2010
  • Place of Presentation: 首都大学東京
  • Year and Date: 2010-09-19
• [Presentation] Origin of the frequency branch ε of the de Haas-van Alphen effect in Ual_3 (2010)
  • Author(s): 立津慶幸、眞榮平孝裕
  • Organizer: International Conference on Heavy Electrons 2010
  • Place of Presentation: 首都大学東京
  • Year and Date: 2010-09-19