Metal-insulator transition in the spinel-type Cu1-xMnIr2S4 system

被引：5
|
作者：
Nagata, S [1 ]
Asakura, T [1 ]
Awaka, J [1 ]
机构：
[1] Muroran Inst Technol, Dept Mat Sci & Engn, Muroran, Hokkaido 0508585, Japan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷
关键词：
Cu1-xMnxIr2S4; metal-insulator transition;
D O I：
10.1016/j.jmmm.2003.11.115
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A thiospinel CuIr2S4 exhibits a temperature-induced metal-insulator (M-I) transition around 230K with a simultaneous spin-dimerization and charge-ordering transition although it is a three-dimensional system. The electronic and magnetic properties of mixed crystals Cu1-xMnxIr2S4 are presented, which is an example for A-site substitution system. Even in the metallic state, T > TM-I the localized magnetic moment is observed with the antiferromagnetic negative Weiss temperature theta. The effective magnetic moment mu(cff) is approximately 4.92 mu(B) per Mn ion for 0.05 less than or equal to x less than or equal to 0.20. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：392 / 393
页数：2
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