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

页码：1404081 / 1404084

页数：4

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