Hidden multipolar orderings explored by nuclear specific heat measurements
| Project/Area Number |
20540359
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
AOKI Yuji Tokyo Metropolitan University, 理工学研究科, 准教授 (20231772)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 強相関系 / スクッテルダイト / 核比熱 / 超微細相互作用 / 超微細結合多重項 / 多極子 / 強相関電子系 |
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| Research Abstract |
An experimental method has been established to determine easily and accurately whether the order parameter includes the f-electron multipoles in low temperature ordered states in rare-earth compounds by nuclear specific heat measurements. Using this method, various ordered phases in rare earth compounds including filled skutterudites have been explored. In PrRu_4P_<12>, we have found a quite rare state where "4f-electron-nuclear hyperfine-coupled multiplets" (formed by the hyperfine interaction between the 4f electron magnetic moment and the nuclear spin in a Pr ion) forming a lattice in the crystal lattice. This is the first thermodynamical observation of its kind.
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Report
(4 results)
Research Products
(97 results)
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[Journal Article] Suppression of time reversal symmetry breaking superconductivity in Pr(Os,Ru)_4Sb_12 and (Pr,La)Os_4Sb_122011
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
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Journal Title
Phys.Rev. B83,100504(R)
Pages: 4-4
Related Report
Peer Reviewed
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[Journal Article] Weak ferromagnetic ordering in the anomalous field-insensitive heavy-fermion state in S_mO_s4Sb_122009
Author(s)
Y. Aoki, W. Higemoto, Y. Tsunashima, Y. Yonezawa, K.H. Satoh, A. Koda, T.U. Ito, K. Ohishi, R.H. Heffner, D. Kikuchi, H. Sato
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Journal Title
PhysicaB 404
Pages: 757-760
Related Report
Peer Reviewed
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[Journal Article]2009
Author(s)
H.Sato, 他3名
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Journal Title
Chap.1 Magnetic Properties of Filled Skutterudites. Handbook of Magnetic Materials, Vol 18(Elsevier)
Pages: 1-110
Related Report
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[Journal Article] Anomalous Electronic Behaviors in Ferromagnetic Kondo Lattice S_mFe_4P_122008
Author(s)
Daisuke Kikuchi, Hitoshi Sugawara, Kenya Tanaka, Hidekazu Aoki, Miki Kobayashi, Shotaro Sanada, Keitaro Kuwahara, Yuji Aoki, Hiroaki Shishido, Rikio Settai, Yoshichika Onuki, Hisatomo Harima, Hideyuki Sato
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Journal Title
Related Report
Peer Reviewed
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[Journal Article] Novel Features Realized in the Filled Skutterudite Structure2008
Author(s)
Hideyuki Sato, Daisuke Kikuchi, Kenya Tanaka, Makoto Ueda, Hidekazu Aoki, Tsuyoshi Ikeno, Sho Tatsuoka, Keitaro Kuwahara, Yuji Aoki, Masafumi Kohgi, Hitoshi Sugawaral, Kazuaki Iwasa, Hisatomo Harima
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Journal Title
J.Phys.Soc.Jpn. 77(Supplement A)
Pages: 1-6
Related Report
Peer Reviewed
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