Magnetic properties of Ho2Co17-xSix compounds

被引：15
|
作者：
Hu, SJ
Wei, XZ
Tegus, O
Zeng, DC
Brück, E
Klaasse, JCP
de Boer, FR
Buschow, KHJ
机构：
[1] Univ Amsterdam, Van der Waals Zeeman Inst, NL-1011 XE Amsterdam, Netherlands
[2] S China Univ Technol, Guangzhou, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1999年 / 284卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
He-Co intermetallics; holmium cobalt silicides; magnetic properties; magnetic anisotropy; spin reorientation;
D O I：
10.1016/S0925-8388(98)00950-5
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We have studied the magnetic properties of Ho2Co17-xSix compounds (x less than or equal to 3) by means of magnetic measurements and X-ray diffraction on magnetically aligned powders. The Curie temperature and the spontaneous moment decrease strongly with increasing Si concentration. We have constructed the magnetic phase diagram for the Ho2Co17-xSix system. The easy magnetization direction is parallel to the c-axis in an extended temperature region below the Curie temperature. A spin-reorientation transition takes place at lower temperatures, leading to an easy magnetization direction perpendicular to the c-axis. In the Ho2Co17 compound, the spin-reorientation transition occurs at 1005 K. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：60 / 64
页数：5
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