High-quality single-crystal growth and the research of the electronic state of the filled-skutterudite compounds

2010 Fiscal Year Final Research Report

• Project/Area Number: 20540358
• 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: The University of Tokushima
• Principal Investigator: SUGAWARA Hitoshi The University of Tokushima, 大学院・理学研究科, 教授 (60264587)
• Project Period (FY): 2008 – 2010
• Keywords: 物性実験 / 強相関電子系 / 低温物性 / 磁性 / 超伝導

Research Abstract

In this research, I have grown highr-quality single-crystals of the filled-skutterudites RT_4X_<12>(R=rare earth, T=Fe, Ru, Os, X=P, As, Sb) and the cage-structure compounds RT_2Al_<10> by using the flux-method and the high-pressure synthesis, and studied the electronic states by using the resistivity, magnetization, specific heat and the de Haas-van Alphen effect etc. As the result, we heve gained new information about the uncoventional magnetism and superconductivity in these compounds.

Research Products

• [Journal Article] de Haas-van Alphen effect in SmOs^4P^12 (2011)
  • Author(s): S.Tanaka, M.Sakoda, E.Matsuoka, H.Sugawara, R.Settai, Y.nuki
  • Journal Title: J.Phys.: Conference Series Vol.273 Pages: 012060/1-4.
  • Peer Reviewed
• [Journal Article] Suppression of time-reversal symmetry breaking superconductivity in Pr(Os_<1-x>Ru_x)_4Sb_12 and Pr_<1-y>LayOs_4Sb_12 (2011)
  • Author(s): Lei Shu, W.Higemoto, Y.Aoki, A.D.Hillier, K.Ohishi, K.Ishida, R.Kadono, A.Koda, O.O.Bernal, D.E.MacLaughlin, Y.Tunashima, Y.Yonezawa, S.Sanada, D.Kikuchi, H.Sato, H.Sugawara, T.U.Ito, M.B.Maple
  • Journal Title: Phys.Rev.B Vol.83 Pages: 100504(R)/1-4.
  • Peer Reviewed
• [Journal Article] Superconducting Characteristics of Filled Skuttrerudites LaPt_2Ge_12 and PrPt_2Ge_12: ^<73>Ge-NQdR/NMR Studies (2010)
  • Author(s): F.Kanetake, H.Mukuda, Y.Kitaoka, K.Magishi, H.Sugawara, K.M.Itoh, E.Haller
  • Journal Title: J.Phys.Soc.Jpn. Vol.79, No.6 Pages: 063702/1-4.
  • Peer Reviewed
• [Journal Article] Fermi surface of the Pr-based filled skutterudite compound PrOs_4P_12 (2009)
  • Author(s): H.Sugawara, Y.Iwahashi, K.Magishi, T.Saito, K.Koyama, H.Harima, D.Kikuchi, H.Sato, T.Endo, R.Settai, Y.Onuki
  • Journal Title: Phys.Rev.B Vol.79, Issue 3 Pages: 035104/1-5
  • Peer Reviewed
• [Journal Article] Electrical, Magnetic and NMR Studies of Ge-based Filled Skutterudites RPt_4Ge_12 (R=La, Ce, Pr, Nd) (2008)
  • Author(s): M.Toda, H.Sugawara, K.Magishi, T.Saito, K.Koyama, Y.Aoki, H.Sato
  • Journal Title: J.Phys.Soc.Jpn. Vol.77, No.12 Pages: 124702/1-9.
  • 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, H.Sato
  • Journal Title: J.Phys.Soc.Jpn. Vol.77, No.11 Pages: 114705/1-7.
  • Peer Reviewed
• [Presentation] RT_2Al_10(R=La, Pr,T=Fe, Ru, Os)の基礎物性 (2011)
  • Author(s): 迫田將仁, 田中修平, 松岡英一, 菅原仁, 櫻井敬博, 太田仁, 松田達磨, 芳賀芳範
  • Organizer: 日本物理学会第66回年次季大会
  • Place of Presentation: 新潟大学五十嵐キャンパス
  • Year and Date: 2011-03-25
• [Presentation] RRu_2Al_10(R=La,Pr)の電気的・磁気的特性 (2010)
  • Author(s): 迫田將仁, 田中修平, 松岡英一, 菅原仁, 播磨尚朝, 櫻井敬博, 太田仁, 本多史憲, 摂待力生, 大貫惇睦, 松田達磨, 芳賀芳範
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学中百舌鳥キャン
  • Year and Date: 2010-09-23
• [Presentation] Low Temperature Electrical and Magnetic Properties in RRu_2Al_10(R=La,Pr) (2010)
  • Author(s): M.Sakoda, S.Tanaka, Y.Inoue, K.Kumauchi, E.Matsuoka, H.Sugawara, T.Sakurai, H.Ohta, T.D.Matsuda, Y.Haga
  • Organizer: International Conference on Heavy Electrons (ICHE2010)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2010-09-17
• [Presentation] Heat capacity measurement of SmOs_4Sb_12 under high pressure (2010)
  • Author(s): T.C.Kobayashi, Y.Kawasaki, K.Miyazawa, Y.Ikeda, S.Araki, H.Kotegawa, H.Sugawara, D.Kikuchi, H.Sato
  • Organizer: International Conference on Heavy Electrons (ICHE2010)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2010-09-17
• [Presentation] LaRu_2Al_10のdHvA効果 (2010)
  • Author(s): 迫田將仁, 田中修平, 松岡英一, 菅原仁, 播磨尚朝, 櫻井敬博, 太田仁, 本多史憲, 摂待力生, 大貫惇睦, 松田達磨, 芳賀芳範
  • Organizer: 新学術領域研究「重い電子系の形成と秩序化」ワークショップ～希薄f電子格子系の新しい秩序～
  • Place of Presentation: 高知大学朝倉キャンパス
  • Year and Date: 2010-08-01
• [Presentation] De Haas-van Alphen effect in SmOs_4P_12 (2010)
  • Author(s): S.Tanaka, M.Sakoda, E.Matsuoka, H.Sugawara, R.Settai, Y.Onuki
  • Organizer: International Conference on Strongly Correlated Electron Systems (SCES2010)
  • Place of Presentation: Santa Fe, USA.
  • Year and Date: 2010-06-28
• [Presentation] SmOs_4P_12のドハース・ファンアルフェン効果 (2010)
  • Author(s): 田中修平, 迫田将仁, 菅原仁, 摂待力生, 大貫惇睦
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学津島キャンパス
  • Year and Date: 2010-03-21
• [Presentation] Temperature evolution of crystal field splitting in PrOs_4P_12 (2009)
  • Author(s): K.Iwasa, K.Saito, Y.Murakami, H.Sugawara
  • Organizer: International Conference on Magnetism 2009
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-27
• [Presentation] 高圧合成により作製された高充填率CeFe_4Sb_12の電子輸送特性 (2008)
  • Author(s): 菅原仁, 齊藤隆志, 龍岡翔, 田中謙弥, 佐藤英行, Gerald Giester,Peter Rogl
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学
  • Year and Date: 2008-09-20
• [Book] HANDBOOK OF MAGNETIC MATERIALS(VOLUME 18, Chapter 1)(Magnetic Properties of Filled Skutterudites)(edited by K.H.J.Buschow.) (2009)
  • Author(s): H.Sato, H.Sugawara, Y.Aoki, H.Harima
  • Total Pages: 1-110.
  • Publisher: Elsevier North-Holland
• [Remarks] ホームページ等
  • URL: http://www.phys.sci.kobe-u.ac.jp/faculty/sugawara.html