Magnetism of filled skutterudites under high magnetic fields

被引：3
|
作者：
Yamada, T. [1 ]
Nakashima, H.
Sugiyama, K.
Hagiwara, M.
Kindo, K.
Tanaka, K.
Kikuchi, D.
Aoki, Y.
Sugawara, H.
Sato, H.
Settai, R.
Onuki, Y.
Harima, H.
机构：
[1] Osaka Univ, Grad Sch Engn, Toyonaka, Osaka 5600043, Japan
[2] Osaka Univ, KYOKUGEN, Osaka 5608531, Japan
[3] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan
[4] Tokyo Metropolitan Univ, Grad Sch Sci & Engn, Hachioji, Tokyo, Japan
[5] Univ Tokushima, Fac Integrated Arts & Sci, Tokushima 770, Japan
[6] Kobe Univ, Fac Sci, Kobe, Hyogo 6578501, Japan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 02期
基金：
日本学术振兴会;
关键词：
PrFe4Sb12; SmOs4Sb12; crystalline electric field; metamagnetic magnetization; heavy fermion system;
D O I：
10.1016/j.jmmm.2006.10.030
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We measured the high-field magnetization M for skutterudite compounds of a paramagnet PrFe4Sb12 and a ferromagnet SmOs4Sb12 to investigate the characteristic magnetic properties. In PrFe4Sb12, we observed a peak structure in the dM/dH curve, which might be a level crossing effect between the singlet ground state and the excited state with a splitting energy of about 20K in the crystalline electric field (CEF) scheme. In SmOs4Sb12, the anisotropy of magnetization for H parallel to 1 0 0 parallel to and [1 1 0] was not observed, which is inconsistent with the quartet ground state in the CEF scheme. (c) 2006 Published by Elsevier B.V.
引用
收藏
页码：252 / 254
页数：3
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