Uncompensated moments in the MnPd/Fe exchange bias system

被引：101
|
作者：
Brueck, Sebastian [1 ]
Schuetz, Gisela [1 ]
Goering, Eberhard [1 ]
Ji, Xiaosong [2 ]
Krishnan, Kannan M. [2 ]
机构：
[1] Max Planck Inst Met Res, D-70569 Stuttgart, Germany
[2] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 12期
关键词：
D O I：
10.1103/PhysRevLett.101.126402
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The element-specific magnetic structure of an epitaxially grown Mn52Pd48/Fe bilayer showing exchange bias was investigated with atomic-layer depth sensitivity at the antiferromagnet/ferromagnet interface by soft-x-ray magnetic circular dichroism and magnetic reflectivity. A complex magnetic interfacial configuration, consisting of a 2-monolayer-thick induced ferromagnetic region, and pinned uncompensated Mn moments that reach far deeper (similar to 13 A), both in the antiferromagnet, were found. For the latter, a direct relationship with the magnitude of the exchange bias is verified by similar measurements perpendicular to the field cooling direction.
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页数：4
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