Evidence of new high-pressure magnetic phases in Fe-Pt invar alloy

被引：24
|
作者：
Matsushita, M
Endo, S
Miura, K
Ono, F
机构：
[1] Okayama Univ, Fac Sci, Dept Phys, Okayama 7008530, Japan
[2] Osaka Univ, Res Ctr Mat Sci Extreme Condit, Toyonaka, Osaka 5608531, Japan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2003年 / 260卷 / 03期
关键词：
Fe-Pt invar alloy; high pressure; AC susceptibility measurement; magnetic phase transition; reentrant spin glass;
D O I：
10.1016/S0304-8853(02)01342-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To investigate the magnetic properties of disordered Fe70Pt30 Invar alloy under high pressure, measurements of the real part of the AC susceptibility (chi) were made under pressure up to 7.5 GPa in the temperature range 4.2-385 K using a cubic anvil high-pressure apparatus. The Curie temperature (T-C) decreased with increasing pressure, and then, two new high-pressure magnetic phases appeared. These results show that the ferromagnetism of Fe-Pt Invar alloy becomes weaker, and the antiferromagnetic interaction becomes dominant with increasing pressure. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：371 / 374
页数：4
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