Magnetic moments in thin epitaxial Cr films on Fe(100)

被引:20
作者
Fuchs, P
Petrov, VN
Totland, K
Landolt, M
机构
[1] Laboratorium für Festkörperphysik, Eidgenössische Technische Hochschule Zürich
来源
PHYSICAL REVIEW B | 1996年 / 54卷 / 13期
关键词
D O I
10.1103/PhysRevB.54.9304
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The absolute magnetic moments of thin Cr overlayers on Fe(100) are directly determined by energy-resolved spin-polarized secondary-electron emission. Spin-dependent attenuation of low-energy secondary electrons is quantitatively treated, following a model by Siegmann, to extract magnetic depth profiles in the adlayer. The first monolayer of Cr couples antiferromagnetically to the Fe substrate and exhibits a maximum magnetic moment of 1.8+/-0.2 mu(B), per atom for a submonolayer coverage. Subsequent Cr layers show a positive magnetization.
引用
收藏
页码:9304 / 9307
页数:4
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