Asymmetric magnetization reversal on exchange biased CoO/Co bilayers

被引：77
|
作者：
Radu, F
Etzkorn, M
Schmitte, T
Siebrecht, R
Schreyer, A
Westerholt, K
Zabel, H
机构：
[1] Ruhr Univ Bochum, Inst Exptphys, D-44780 Bochum, Germany
[2] Inst Natl Fiz Ingn Nucl, Dept Fiz Expt, Magurele Bucuresti 76900, Romania
[3] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 240卷 / 1-3期
关键词：
exchange bias; magnetization reversal; neutron reflectivity;
D O I：
10.1016/S0304-8853(01)00815-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study magnetic hysteresis loops after field cooling of a CoO/Co bilayer by MOKE and polarized neutron reflectivity. The neutron scattering reveals that the first magnetization reversal after field cooling is dominated by domain wall movement, whereas all subsequent reversals proceed essentially by rotation of the magnetization. In addition, off-specular diffuse scattering indicates that the first magnetization reversal induces an irreversible change of the domain state in the antiferromagnet. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：251 / 253
页数：3
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