Exchange anisotropy of (001)-oriented Mn80Ir20/NiFe epitaxial bilayers

被引：8
作者：
Kume, T
Kato, T
Iwata, S
Tsunashima, S
机构：
[1] Nagoya Univ, Dept Elect, Chikusa Ku, Nagoya, Aichi 4648603, Japan
[2] Nagoya Univ, CCRAST, Nagoya, Aichi 4648603, Japan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 286卷
关键词：
antiferromagnet; epitaxial film; exchange anisotropy; MnIr disordered alloy;
D O I：
10.1016/j.jmmm.2004.09.072
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Exchange anisotropy was investigated for Mn80Ir20/NiFe epitaxial bilayers with (001)-orientation grown applying a magnetic field along either the [100] or the [110] direction and was compared with that for Mn89Pt11/NiFe bilayers. The Mn80Ir20/NiFe bilayers exhibited a large exchange bias field without post-annealing. Its easy direction of the unidirectional anisotropy was always parallel to the <110> direction. This result was similar to that of Mn89Pt11/NiFe bilayers. On the other hand, MnIr/NiFe bilayers showed magnetic anisotropy torque curves significantly different from Mn89Pt11/NiFe bilayers. Mn89Pt11/NiFe showed a very large 4-fold component while Mn80Ir20/NiFe showed a much smaller one. (C) 2004 Elsevier B.V. All rights reserved.
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收藏
页码：243 / 247
页数：5
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