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

页码：8815 / 8820

页数：6

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