Investigating novel features in the high quality filled skutterudites by controlling the filling fraction of the rare earth elements

2010 Fiscal Year Final Research Report

• Project/Area Number: 20340094
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: SATO Hideyuki 首都大学東京, 大学院・理工学研究科, 教授 (80106608)
• Co-Investigator(Kenkyū-buntansha): AOKI Yuji 首都大学東京, 大学院・理工学研究科, 准教授 (20231772)
• Co-Investigator(Renkei-kenkyūsha): HIGASHINAKA Ryuuji 首都大学東京, 大学院・理工学研究科, 助教 (30435672) ; KUWAHARA Keitaro 茨城大学, 大学院・理工学研究科, 准教授 (90315747) ; NAMIKI Takahiro 富山大学, 大学院・理工学研究部, 准教授 (40535340)
• Project Period (FY): 2008 – 2010
• Keywords: 充填スクッテルダイト / 強相関電子系 / 高圧合成 / ラットリング / 重い電子 / 結晶場 / 希土類化合物

Research Abstract

The filled skutterudite compounds had been intensively investigated and various attractive phenomena have been found. However, quite a few important members had not been investigated, partly because of the difficulty in growing single crystals. In this research, the single crystals of them have successfully grown by the flux method under high pressure, and their basic features have been investigated and clarified.

Research Products

• [Journal Article] Electron-Nuclear Hyperfine-Coupled Multiplets in the Unconventional Charge Order Phase of Filled Skutterudite PrRu_4P_<12> (2011)
  • Author(s): Y. Aoki, T. Namiki, S. R. Saha, T. Tayama, T. Sakakibara, R. Shiina, H. Shiba, H. Sugawara and H. Sato
  • Journal Title: J. Phys. Soc. Jpn Volume: 80 Pages: 054704(7)
  • Peer Reviewed
• [Journal Article] Response of Itinerant-Electron Weak Ferromagnet LaFe_4As_<12> to Pressure and Magnetic Field (2010)
  • Author(s): S. Tatsuoka, M. Watanabe, B. Suemitsu, Y. Ogawa, A. Yamada, K. Matsubayashi, Y. Uwatoko, R. Higashinaka, Y. Aoki, T. Namiki, K. Kuwahara, and H. Sato
  • Journal Title: J. Phys. Soc. Jpn Volume: 79 Pages: 063704(4)
  • Peer Reviewed
• [Journal Article] Transport Properties in Filled Skutterudite GdRu_4P_<12> (2010)
  • Author(s): M. Watanabe, K. Tanaka, S. Tatsuoka, T. Saito, R. Miyazaki, K. Takeda, T. Namiki, K. Kuwahara, R. Higashinaka, Y. Aoki and H. Sato
  • Journal Title: J. of Physics : Conf. Series Volume: 200 Pages: 012222(4)
  • Peer Reviewed
• [Journal Article] Transport Properties in Filled Skutterudite GdRu4P12 (2010)
  • Author(s): M. Watanabe, K. Tanaka, S. Tatsuoka, T. Saito, R. Miyazaki, K. Takeda, T. Namiki, K. Kuwahara, R. Higashinaka, Y. Aoki and H. Sato
  • Journal Title: J. of Physics : Conf. Series Volume: 200 Pages: 012222(4)
  • Peer Reviewed
• [Journal Article] Microscopic study of antiferromagnetic ground state and possible high-field ordered state in CeOs4Sb12 using muon spin rotation and relaxation (2010)
  • Author(s): T. U. Ito, W. Higemoto, K. Ohishi, K. Satoh, Y. Aoki, S. Toda, D. Kikuchi, H. Sato, and C. Baines
  • Journal Title: Phys. Rev. B Volume: 82 Pages: 014420(8)
  • Peer Reviewed
• [Journal Article] Novel features in filled skutterudites containing rare-earth elements with a plural number of 4f-electrons (2009)
  • Author(s): H. Sato, Y. Aoki, D. Kikuchi, H. Sugawara, W. Higemoto, K. Ohishi, T. U. Ito, R. Heffner, S. R. Saha, A. Koda, K. H. Satoh, K. Nishiyama, R. Kadono, N. Nishida, LeiShu, D. E. MacLaughlin
  • Journal Title: Physica B Volume: 404 Pages: 749-753
  • Peer Reviewed
• [Journal Article] Crystal field effect on superconducting transition in Superconducting Transition in Pr_xOs_4Sb_<12> (2009)
  • Author(s): K. Tanaka, T. Namiki, A. Imamura, M. Ueda, T. Saito, S. Tatsuoka, R. Miyazaki, K. Kuwahara, Y. Aoki, and H. Sato
  • Journal Title: J. Phys. Soc. Jpn Volume: 78 Pages: 063701(4)
  • Peer Reviewed
• [Journal Article] Anomalous properties in the low-carrier ordered phase of PrRu4P12, Consequence of hybridization between conduction and Pr 4f electrons (2009)
  • Author(s): S. R. Saha, H. Sugawara, T. Namiki, Y. Aoki, and H. Sato
  • Journal Title: Phys. Rev. B Volume: 80 Pages: 014433-6
  • Peer Reviewed
• [Journal Article] Excitation spectrum of PrOs_4Sb_<12> under a magnetic field (2009)
  • Author(s): S Raymond, K Kuwahara, K Kaneko, K Iwasa, M Kohgi, A. Hiess, J. Flouquet1, N. Metoki, H. Sugawara, Y. Aoki and H. Sato
  • Journal Title: J. Phys.: Condens. Matter Volume: 21 Pages: 215702(5)
  • Peer Reviewed
• [Journal Article] Systematic Study of Lattice Specific Heat of Filled Skutterudites (2009)
  • Author(s): K. Matsuhira, C. Sekine, M. Wakeshima, Y. Hinatsu, T. Namiki, K. Takeda, I. Shirotani, H. Sugawara, D. Kikuchi, and H. Sato
  • Journal Title: J. Phys. Soc. Jpn Volume: 78 Pages: 124601(6)
  • Peer Reviewed
• [Journal Article] Anomalous Electronic Behaviors in Ferromagnetic Kondo Lattice SmFe_4P_<12> (2008)
  • Author(s): D. Kikuchi, H. Sugawara, K. Tanaka, H. Aoki, M. Kobayashi, S. Sanada, K. Kuwahara, Y. Aoki, H. Shishido, R. Settai, Y. Onuki, H. Harima, and H. Sato
  • Journal Title: J. Phys. Soc. Jpn Volume: 77 Pages: 114705(7)
  • Peer Reviewed
• [Presentation] PrFe_4P_<12>に於ける高磁場秩序相及び新たな高磁場相境界 (2012)
  • Author(s): 佐藤英行
  • Organizer: 日本物理学会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-24
• [Presentation] Electronic state of 4f-electrons confined in nanoscale cages (2011)
  • Author(s): H. Sato
  • Organizer: International Conference of New Science Created by Materials with Nano Spaces
  • Place of Presentation: Sendai
  • Year and Date: 20111123-26
• [Presentation] The research project on the filled skutterudites in Japan (2011)
  • Author(s): H. Sato
  • Organizer: International Workshop From Blue Pigment to Green Energy
  • Place of Presentation: Vikersund, Norway
  • Year and Date: 20110905-08
• [Presentation] Attractive behaviors of 4f-electrons in the cage-type compounds : Filled skutterudite PrFe_4P_<12> (2010)
  • Author(s): H. Sato
  • Organizer: The International Workshop on Resonating Valence Bond Physics : Spin Liquids and Beyond
  • Place of Presentation: Budapest, Hungary
  • Year and Date: 20101013-15
• [Presentation] Possible multipole order in new filled skutterudites (2010)
  • Author(s): H. Sato
  • Organizer: International Workshop On the Heavy-Fermion road
  • Place of Presentation: Paris
  • Year and Date: 20100830-0901
• [Presentation] Recent results on filled skutterudite single crystals flux-grown under high pressures", International Conference on Core Research and Engineering Science of Advanced Materials & Third International Conference on Nanospintronics Design and Realization (2010)
  • Author(s): H. Sato
  • Organizer: 3rd-ICNDR
  • Place of Presentation: Osaka
  • Year and Date: 20100530-0605
• [Presentation] Current understanding of the heavy fermion superconductivity in PrOs_4Sb_<12> (2009)
  • Author(s): H. Sato
  • Organizer: The 9th International Conference on Materials and Mechanisms of Superconductivity(M2S-IX)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20090907-12
• [Presentation] Novel features in the Fe-based filled Skutterudites", The 10th German-Japanese Symposium "Collective Quantum-Phenomena in Correlated Condensed Matter Systems" (2008)
  • Author(s): H. Sato
  • Organizer: Rottach-Egern
  • Place of Presentation: Germany
  • Year and Date: 20080928-1001
• [Presentation] Novel features in filled skutterudites containing rare earth elements with a plural number of 4f electrons, 11^<th> International Conf (2008)
  • Author(s): H. Sato
  • Organizer: Muon Spin Rotation, Relaxation, and Resonance(μSR) held in Tsukuba
  • Place of Presentation: Japan
  • Year and Date: 20080721-25
• [Book] Magnetic Properties of Filled Skutterudites, In Handbook of Magnetic Materials (2009)
  • Author(s): H. Sato, H. Sugawara, Y. Aoki and H. Harima
  • Total Pages: 1-110
  • Publisher: Elsevier