TEMPERATURE-DEPENDENCE OF THE 90-DEGREES COUPLING IN FE/AL/FE(001) MAGNETIC TRILAYERS

被引：33
|
作者：
FILIPKOWSKI, ME
GUTIERREZ, CJ
KREBS, JJ
PRINZ, GA
机构：
[1] Naval Research Laboratory, Washington
来源：
JOURNAL OF APPLIED PHYSICS | 1993年 / 73卷 / 10期
关键词：
D O I：
10.1063/1.353484
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The temperature dependence of the unusual magnetic 90-degrees coupling in epitaxial Fe/Al/Fe(001) trilayers has been determined. For specific values of applied field and temperature, in-plane anisotropy and the interlayer coupling drive abrupt first-order changes in the temperature-dependent moment of these trilayers. The occurrence of such a first-order transition can be used to determine the value of the interlayer coupling constant, J(Q), at the transition temperature. We show that Fe/Al/Fe(001) trilayers also exhibit distinct second-order transitions in the temperature-dependent moment, and that the occurrence of a second-order transition can similarly be used to specify J(Q)(T). A comparison is made of the values of J(Q)(T) determined by these two approaches, and the dependence of J(Q) on T is analyzed.
引用
收藏
页码：5963 / 5965
页数：3
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