Effect of F AF coupling strength on the magnetization process of F AF system

被引：19

作者：

Hou, C

Fujiwara, H

Ueda, F

机构：

[1] Univ Alabama, MINT Ctr, Tuscaloosa, AL 35487 USA

[2] Univ Alabama, Dept Phys, Tuscaloosa, AL 35487 USA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 198-99卷

基金：

美国国家科学基金会;

关键词：

antiferromagnetic layer; ferromagnetic layer; exchange coupling; pinning field; coercivity; model;

D O I：

10.1016/S0304-8853(98)01165-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of the exchange coupling strength J between NiFe and FeMn layers on the magnetization process in NiFe/FeMn structures was investigated. Samples with structures of NiFe/impurity (or Cu)/FeMn and NiFe/FeMn were prepared and measured to determine their hysteresis loop shift H(p) and coercivity H(c). It is often assumed that H(p) is proportional to J. However, our results show that H(p) dependence on J is not monotonic. A phenomenological model is proposed to explain the results. A better method for estimation of J is also proposed. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：450 / 452

页数：3

共 9 条

[1] THERMAL FLUCTUATION AFTEREFFECT MODEL FOR SOME SYSTEMS WITH FERROMAGNETIC-ANTIFERROMAGNETIC COUPLING [J].