Evolution of local magnetic state in SmRu4P12 probed by muon spin relaxation

被引:26
作者
Ito, Takashi U. [1 ]
Higemoto, Wataru
Ohishi, Kazuki
Fujimoto, Tatsuya
Heffner, Robert H.
Nishida, Nobuhiko
Satoh, Kazuhiko
Sugawara, Hitoshi
Aoki, Yuji
Kikuchi, Daisuke
Sato, Hideyuki
机构
[1] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan
[2] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan
[3] Saitama Univ, Grad Sch Sci & Engn, Urawa, Saitama 3388570, Japan
[4] Univ Tokushima, Fac Integrated Arts & Sci, Tokushima 7708502, Japan
[5] Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan
关键词
filled skutterudite; metal-insulator transition; multipole ordering; magnetic fluctuations; muon spin relaxation;
D O I
10.1143/JPSJ.76.053707
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We performed muon spin relaxation measurements on randomly aligned single-crystal line samples of SmRu4P12 down to 0.02 K to investigate static and dynamical magnetic properties in low fields. The local field at the muon site develops gradually with decreasing temperature below a metal-insulator transition temperature of T-MI = 16.5 K, growing steeply below T' = 3 K with an accompanying suppression of magnetic fluctuations. We discuss the contribution of a possible octupole moment to the local magnetic states and the magnetic anomaly at T'.
引用
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页数:4
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