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Step-Induced Magnetic Defects in Fe/Cr Systems

Published online by Cambridge University Press:  10 February 2011

M. Freyss ,
D. Stoeffler  and
H. Dreysse
M. Freyss
Affiliation:
Institut de Physique et de Chimie des Matériaux de Strasbourg, Groupe des Matériaux Métalliques, 23 rue du Loess, 67037 Strasbourg, France.
D. Stoeffler
Affiliation:
Institut de Physique et de Chimie des Matériaux de Strasbourg, Groupe des Matériaux Métalliques, 23 rue du Loess, 67037 Strasbourg, France.
H. Dreysse
Affiliation:
Institut de Physique et de Chimie des Matériaux de Strasbourg, Groupe des Matériaux Métalliques, 23 rue du Loess, 67037 Strasbourg, France.
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Abstract

We present the results of calculations of the magnetic order in Fe/Cr systems with a mono-atomic step at the interface. The study of such a systems is of particular interest since it is believed that topological defects play an essential role in the exchange coupling mechanism in Fe/Cr multilayered systems. We show that assuming only collinear magnetism, an interfacial step creates a very extended magnetic defect in the Cr layer. On the other hand, when the local magnetic moments are allowed to rotate, the magnetic defect is very localized near the step and the presence of the step induces a non-collinear coupling between the Fe layers in Fe/Cr superlattices.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 475: Symposium M – Magnetic Ultrathin Films, Multilayers, and Surfaces – 1997 , 1997 , 201
Copyright
Copyright © Materials Research Society 1997

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References

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