EXPERIMENTAL AND THEORETICAL SPIN CONFIGURATIONS IN FE/GD MULTILAYERS

被引：57
|
作者：
SAJIEDDINE, M [1 ]
BAUER, P [1 ]
CHERIFI, K [1 ]
DUFOUR, C [1 ]
MARCHAL, G [1 ]
CAMLEY, RE [1 ]
机构：
[1] UNIV COLORADO,DEPT PHYS,COLORADO SPRINGS,CO 80907
来源：
PHYSICAL REVIEW B | 1994年 / 49卷 / 13期
关键词：
D O I：
10.1103/PhysRevB.49.8815
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The experimental magnetic phase diagram for three characteristic Fe/Gd multilayered samples is confirmed on a microscopic scale by Fe-57 Mossbauer spectroscopy using a special geometry. The iron moment rotation in the sample plane at a critical H* external field is observed and signals the transition from an aligned to a twisted state. This behavior is accounted for within the framework of an improved mean-field model. Self-consistent spin maps are derived for given temperatures and external fields applied parallel to the sample plane. A unique set of exchange coupling constants is used to calculate both the mean magnetic properties and the Mossbauer spectroscopy data.
引用
收藏
页码：8815 / 8820
页数：6
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