Structures and magnetic properties of 3:29-type Gd-Fe-Co-Cr compounds

被引：9
|
作者：
Yang, D [1 ]
Wang, JL [1 ]
Tang, N [1 ]
Shen, YP [1 ]
Yang, FM [1 ]
机构：
[1] Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100080, Peoples R China
来源：
ACTA PHYSICA SINICA | 1999年 / 48卷 / 12期
关键词：
D O I：
10.7498/aps.48.80
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The structural and magnetic properties of synthetic Gd-3(Fe1-xCox)(25)Cr-4 (0 less than or equal to x less than or equal to 0.6) and Gd3Fe29-yCry (3.5 less than or equal to y less than or equal to 5.0) compounds have been investigated. The structures of all the compounds are found to belong to the A(2/m) space group. Increase of Cr content leads to decreasing Curie temperature, decreasing saturation magnetization and decreasing anisotropy. Substitution of Co for Fe leads to a clear contraction of the unit-cell volume, but the increase of Curie temperature. Composition dependence of saturation magnetization at 5 K reaches a maximum around x = 0.3. It is noteworthy that substitution of Co for Fe results in a significant change of magnetocrystalline anisotropy of the Co sublattice, and changes of the easy magnetization direction of Gd-3(Fe1-xCox)(25)Cr-4 compounds from basal plane to easy axis.
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页码：S80 / S86
页数：7
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