TEMPERATURE-DEPENDENCE OF HYPERFINE MAGNETIC-FIELDS IN FE-CO ALLOYS

被引：27
|
作者：
HAMDEH, HH
OKAMOTO, J
FULTZ, B
机构：
[1] Division of Engineering and Applied Science, California Institute of Technology, Pasadena
来源：
PHYSICAL REVIEW B | 1990年 / 42卷 / 10期
关键词：
D O I：
10.1103/PhysRevB.42.6694
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A Mössbauer spectrometry study of bcc Fe-Co alloys was performed to measure the Fe57 hyperfine-field parameters from 77 to 900 K. The temperature dependence of the Fe57 hyperfine magnetic field in Fe-Co alloys was similar, although not identical, to that of Fe57 in pure Fe. These results are understood if the alignment of magnetic moments at Fe atoms is only slightly more temperature dependent than at Co atoms. This situation for Fe-Co is significantly different from that of Fe-Ni alloys, indicating that the interatomic exchange interactions in Fe-Co alloys are stronger than in Fe-Ni. © 1990 The American Physical Society.
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收藏
页码：6694 / 6696
页数：3
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