Magnetic interface coupling in single-crystalline Co/FeMn bilayers

被引：62
|
作者：
Kuch, W [1 ]
Offi, F [1 ]
Chelaru, LI [1 ]
Kotsugi, M [1 ]
Fukumoto, K [1 ]
Kirschner, J [1 ]
机构：
[1] Max Planck Inst Mikrostrukturphys, D-06120 Halle Saale, Germany
来源：
PHYSICAL REVIEW B | 2002年 / 65卷 / 14期
关键词：
D O I：
10.1103/PhysRevB.65.140408
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The magnetic coupling between epitaxial single-crystalline Co and FeMn layers on Cu(001) was investigated by element-resolved magnetic circular dichroism domain imaging using a photoelectron emission microscope. As-grown Co domain patterns reveal the presence of many small domains in the antiferromagnet. The coupling of the Co layer is found to be along <100> crystallographic directions. This is discussed in terms of a 45degrees coupling due to frustrations at topological 90degrees domains in the FeMn layer. Coercivity oscillations as a function of FeMn thickness with atomic monolayer period support the importance of such step-induced domains in the coupling.
引用
收藏
页码：1404081 / 1404084
页数：4
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