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DOI: 10.1016/S0304-8853(01)00773-9
PII: S0304-8853(01)00773-9
Copyright © 2001 Published by Elsevier Science B.V. All rights reserved.

Calculated angular dependence of the interlayer couplings in Fe/Cr superlattices having imperfect interfaces

Daniel Stoeffler^, and Clara Cornea

Institut de Physique et de Chimie des Matériaux de Strasbourg, UMR 7504 du CNRS, Groupe d'Etude des Matériaux Métalliques, 23 rue du Loess F-67037, Strasbourg, France

Available online 6 November 2001.

Abstract

We present calculations of the non-collinear magnetic structure in Fe/Cr superlattices having imperfect interfaces modeled by considering atomic steps in the Cr layers and Fe/Cr interfacial ordered compounds. The interlayer couplings are obtained directly from self-consistent tight binding band structure calculations. We show that the bilinear_¯biquadratic expression for the coupling energy fits nicely the calculated interlayer couplings curves.

Author Keywords: Electronic structure; Exchange coupling_¯¯bilinear_¯biquadratic; Interface roughness; Multilayers_¯¯metallic

Article Outline

References

References

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Corresponding author: Tel.: +33-88-107065; fax: +33-88-107249; email: daniel.stoeffler@ipcms.u-strasbg.fr
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