充填スクッテルダイト構造に創出する新しい量子多電子状態の展開の総括

• Project/Area Number: 15072101
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: 佐藤 英行 Tokyo Metropolitan University, 理工学研究科, 教授 (80106608)
• Co-Investigator(Kenkyū-buntansha): 榊原 俊郎 東京大学, 物性研究所, 教授 (70162287) ; 播磨 尚朝 神戸大学, 理学部, 教授 (50211496) ; 関根 ちひろ 室蘭工業大学, 工学部, 准教授 (60261385) ; 吉澤 正人 岩手大学, 大学院・工学研究科, 教授 (30220619) ; 宇田川 眞行 広島大学, 総合科学部, 教授 (70144889) ; 城谷 一民 室蘭工業大学, 工学部, 教授 (90110692) ; 神木 正史 首都大学東京, 都市教養学部, 客員教授 (30004451)
• Project Period (FY): 2003 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥32,800,000 (Direct Cost: ¥32,800,000); Fiscal Year 2008: ¥3,000,000 (Direct Cost: ¥3,000,000); Fiscal Year 2007: ¥8,800,000 (Direct Cost: ¥8,800,000); Fiscal Year 2006: ¥5,900,000 (Direct Cost: ¥5,900,000); Fiscal Year 2005: ¥6,100,000 (Direct Cost: ¥6,100,000); Fiscal Year 2004: ¥5,200,000 (Direct Cost: ¥5,200,000); Fiscal Year 2003: ¥3,800,000 (Direct Cost: ¥3,800,000)
• Keywords: 充填スクッテルダイト / 重い電子系 / 多重極秩序 / ラトリング / 新奇超伝導 / 磁場誘起秩序 / 強相関電子系 / c-f混成効 / c-f混成効果 / 強相間電子系 / 結晶場効果

Research Abstract

1. 平成19年3月までの研究成果、及び一部繰越した事業についてまとめた報告書を作成した。(これまで、本領域に関する情報は、事務局である神戸大学で行われてきたため、報告書の作成の実務は、分担者、神戸大学・播磨尚朝教授が行った。)
2. 本特定領域の研究成果を、領域全体の構成員が一堂に会し議論をしてまとめるための全体研究会を平成20年7月11日(金)〜13日(日)の期間、物性研にて開催した。
・この研究会では、全ての計画班及び公募班に、各々の研究成果をまとめる報告を依頼する。
・各々の報告に対する質疑応答を行う。
・それに引き続き、総括班会議を開き、領域全体としてのまとめを行う。
・更に、評価委員の方々から評価を受ける。
3. 以上に基づいて、最終的なまとめと事後評価に関わる資料作成を行ない、事後評価ヒヤリングにあたった。

Research Products

• [Journal Article] Novel Features Realized in the Filled Skutterudite Structure (2008)
  • Author(s): H. Sato, et.al.
  • Journal Title: J.Phys.Soc.Jpn. (2008) Suppl. A 77 Pages: 1-6
  • Peer Reviewed
• [Journal Article] Multipole Phenomena and Superconductivity in Pr-based Filled Skutter udites (2008)
  • Author(s): T. Sakakibara, et.al.
  • Journal Title: J.Phys.Soc.Jpn. (2008) Suppl. A 77 Pages: 1180-186
  • Peer Reviewed
• [Journal Article] Guest Ion Motion in Cage Structure Crystals Investigated by Raman Scattering (2008)
  • Author(s): M. Udagawa, et.al.
  • Journal Title: J.Phys.Soc.Jpn. (2008) Suppl. A 77 Pages: 142-147
  • Peer Reviewed
• [Journal Article] Novel Features Realized in the Filled Skutterudite Structure (2008)
  • Author(s): H. Sato, D. Kikuchi, K. Tanaka, M. Ueda, H. Aoki, et al.
  • Journal Title: J. Phys. Soc. Jpn. 77 Suppl. A Pages: 1-6
  • Peer Reviewed
• [Journal Article] Multipole Phenomena and Superconductivity in Pr-based Filled Skutterudites (2008)
  • Author(s): T. Sakakibara, K. Yano, H. Sato, T. Tayama, et. al.
  • Journal Title: J. Phys. Soc. Jpn. 77 Suppl. A Pages: 180-186
  • Peer Reviewed
• [Journal Article] Guest Ion Motion in Cage Structure Crystals Investigated by Raman Scattering (2008)
  • Author(s): M. Udagawa, T. Hasegawa, Y. Takasu, N. Ogita, et al.
  • Journal Title: J. Phys. Soc. Jpn. 77 Suppl. A Pages: 142-147
  • Peer Reviewed
• [Journal Article] Novel electronic states realized in the filled skutterudites containing rare earth elements with more than one 4f-electrons (2007)
  • Author(s): H.Sato, D.Kikuchi, K.Tanaka, H.Aoki, K.Kuwahara, Y.Aoki, M.Kohgi, H.Sugawara, K.Iwasa
  • Journal Title: J.Magn.Magn.Mat. 310 Pages: 188-194
• [Journal Article] Nodal Structures of Heavy Fermion Superconductors Probed by the Specific-Heat Measurements in Magnetic Fields (2007)
  • Author(s): T.Sakakibara, A.Yamada, J.Custers, K.Yano, T.Tayama, H.Aoki, K.Machida
  • Journal Title: J.Phys.Soc.Jpn. 76・5(印刷中)
  • NAID: 110006273160
• [Journal Article] Anomalous elastic softening of SmRu_4P_12 under high pressure (2007)
  • Author(s): P.Sun, Y.Nakanishi, M.Nakamura, M.Yoshizawa, M.Ohashi, G.Oomi, C.Sekine, I.Shirotani
  • Journal Title: Phys.Rev.B 75 Pages: 54114-54114
• [Journal Article] Effective Crystalline Electric Field Potential in a j-j Coupling Scheme (2006)
  • Author(s): T.Hotta, H.Harima
  • Journal Title: J.Phys.Soc.Jpn. 75
  • NAID: 110005716699
• [Journal Article] Dynamical properties of guest ions in the type-I clathrate compounds X_8Ga_<16>Ge_<30>(X=Eu,Sr,Ba) investigated by Raman scattering (2006)
  • Author(s): Y.Takasu, T.Hasegawa, N.Ogita, M.Udagawa, M.A.Avila, K.Suekuni, I.Ishii, T.Suzuki, T.Takabatake
  • Journal Title: Phys.Rev.B 74
• [Journal Article] Scalar Order : Possible Candidate for Order Parameters in Skutterudites (2006)
  • Author(s): A.Kiss, Y.Kuramoto
  • Journal Title: J.Phys.Soc.Jpn. 75 Pages: 103704-103704
• [Journal Article] Reduced thermal conductivity and strong electron-phonon interaction in enhanced Pauli paramagnets AOs_4Sb_<12> (A=Sr, Ba) (2006)
  • Author(s): E.Matsuoka, S.Narazu, K.Hayashi, K.Umeo, T.Takabatake
  • Journal Title: J.Phys.Soc.Jpn. 75
• [Journal Article] Novel Kondo Behaviors Realized in the Filled Skutterudite Structure (2005)
  • Author(s): Y.Aoki, H.Sugawara, H.Harima, H.Sato
  • Journal Title: J.Phys.Soc.Jpn. 74 Pages: 209-221
  • NAID: 110001979355
• [Journal Article] Superconductivity of new skutterudite compound La_xRh_4P_<12> prepared at high pressure (2005)
  • Author(s): I.Shirotani, S.Sato, C.Sekine, K.Takeda, I.Inagawa, T.Yagi
  • Journal Title: J.Phys.Condens. Matter 17 Pages: 7353-7357
• [Journal Article] Possible octupole ordering in phase II of SmRu_4P_<12> Suggested from elastic constants (2005)
  • Author(s): M.Yoshizawa, Y.Nakanishi, M.Oikawa, C.Sekine I.Shirotani, S.R.Saha, H.Sugawara, H.Sato
  • Journal Title: J.Phys.Soc.Jpn. 74 Pages: 2141-2144
  • NAID: 110001979676
• [Journal Article] Fermi surfaces of PrOs_4Sb_<12> based on the LDA+U method (2005)
  • Author(s): H.Harima, K.Takegahara
  • Journal Title: Physica B 359-361 Pages: 920-922
• [Journal Article] Observation of modulated quadrupole structures in PrPb_3 (2005)
  • Author(s): T.Onimaru, T.Sakakibara, N.Aso, H.Yoshizawa, H.S.Suzuki, T.Takeuchi
  • Journal Title: Phys.Rev.Let. 95
• [Journal Article] Raman scattering study of filled skutterudite PrRu_4P_<12> (2005)
  • Author(s): N.Ogita, K.Yamamoto S.R.Saha, H.Sugawara, H.Sato, C.Sekine, I.Shirotani, M.Udagawa
  • Journal Title: Physica B 6359-361 Pages: 847-849
• [Journal Article] Electrical and magnetic properties of new filled skutterudites LnFe_4P_<12> (Ln=Ho, Er, Tm and Yb) and YRu_4P_<12> with heavy lanthanide (including Y) prepared at high pressure (2005)
  • Author(s): I.Shirotani, N.Araseki, Y.Shimaya, R.Nakata, K.Kihou, C.Sekine, T.Yagi
  • Journal Title: J.Phys. : Condensed Matterr 17 Pages: 4383-4391
• [Journal Article] Direct Observation of Quadrupolar Excitons in the Heavy-Fermion Superconductor PrOs_4Sb_<12> (2005)
  • Author(s): K.Kuwahara, K.Iwasa, M.Kohgi, K.Kaneko, N.Metoki, S.Raymond, M.-A.Measson, J.Flouquet, H.Sugawara, Y.Aoki, H.Sato
  • Journal Title: Phys.Rev.Lett. 95
• [Journal Article] Multiband Superconductivity in the Heavy Fermion Compound PrOs_4Sb_<12> (2005)
  • Author(s): G.Seyfarth, J.P.Brison, M.-A.Measson, J.Flouquet, K.Izawa, Y.Matsuda, H.Sugawara, H.Sato
  • Journal Title: Phys.Rev.Lett. 95
• [Journal Article] Elastic constant in magnetic fields and singlet-triplet state of heavy Fermion superconductor PrOs_4Sb_<12> (2005)
  • Author(s): T.Goto, Y.Nemoto, K.Onuki, K.Sakai, T.Yamaguchi, M.Akatsu, T.Yanagisawa, H.Sugawara, H.Sato
  • Journal Title: J.Phys.Soc.Jpn. 74 Pages: 263-266
  • NAID: 110001979363
• [Journal Article] Exotic Heavy-Fermion State in Filled Skutterudite SmOs_4Sb_<12> (2005)
  • Author(s): S.Sanada, Y.Aoki, H.Aoki, A.Tsuchiya, D.Kikuchi, H.Sugawara, H.Sato
  • Journal Title: J.Phys.Soc.Jpn. 74 Pages: 246-249
  • NAID: 110001979359
• [Journal Article] Novel Kondo Behaviors Realized in the Filled Skutterudite Structure (2005)
  • Author(s): Y.Aoki, H.Sugawara, H.Harima, H.Sato
  • Journal Title: J.Phys.Soc.Jpn. 41 Pages: 209-211
  • NAID: 110001979355
• [Journal Article] Pressure-Induced Superconductivity in Filled Skutterudite PrRu_4P_<12> (2004)
  • Author(s): A.Miyake, K.Shimizu, C.Sekine, K.Kihou, I.Shirotani
  • Journal Title: Phys.Rev.Let. 73 Pages: 2370-2372
  • NAID: 110001954985
• [Journal Article] Magnetic Excitations in Heavy-Fermion Superconductor PrOS_4Sb_<12> (2004)
  • Author(s): K.Kuwahara, K.Iwasa, M.Kohgi, et al.
  • Journal Title: J.Phys.Soc.Jpn. 73 Pages: 1438-1441
• [Journal Article] New High-Field Ordered State in PrFe_4P_<12> (2004)
  • Author(s): T.Tayama, J.Custers, H.Sato, T.Sakakibara, et al.
  • Journal Title: J.Phys.Soc.Jpn 73 Pages: 3258-3261
  • NAID: 110001979291
• [Journal Article] Possible Kondo resonance in PrFe_4P_<12> studied by bulk-sensitive photo emission (2004)
  • Author(s): A.Yamasaki, S.Imada, T.Nanba, et al.
  • Journal Title: Phys.Rev.B 70
• [Journal Article] Elastic properties of the filled skutterudite compound NdFe_4P_<12> (2004)
  • Author(s): Y.Nakanishi, T.Kumagai, M.Yoshizawa, et al.
  • Journal Title: Phys.Rev.B 69
• [Presentation] 充填スクッテルダイト構造-その理解の深化と新たな展開- (2008)
  • Author(s): 佐藤英行
  • Organizer: 日本物理学会
  • Place of Presentation: 岩手大学
  • Year and Date: 2008-09-20
• [Remarks]
  • URL: http://www2.kobe-u.ac.in/
• [Remarks]
  • URL: http://www2.kobe-u.ac.jp/~hh/skutterud/skut2007/index.html
• [Publications] C.R.Rotundu: "High magnetic field phase diagram of PrOs_4Sb_<12>"Phys.Rev.Let.. 92. 037203-1-037203-4 (2004)
• [Publications] Y.Nakanishi: "Elastic properties of the filled skutterudite compound NdFe_4P_<12>"Phys.Rev.B. 69. 064409 1-064409 5 (2004)
• [Publications] E.E.M.Chia: "Probing the Superconducting Gap Symmetry of PrOs_4Sb_<12> : A Penetration Depth Study"Phys.Rev.Let.. 91. 247003 (2003)
• [Publications] M.Matsunami: "Gap formation in the filled skutterudite CeCo_4Sb_<12>"J.Phys.Soc, Jpn.. 72. 2722-2725 (2003)
• [Publications] Y.Aoki: "Time-reversal symmetry-breaking superconductivity in heavy fermion PrOs_4Sb_<12> detected by muon spin relaxation"Phys.Rev.Let.. 91. 067003 (2003)