| Issue |
Europhys. Lett.
Volume 56, Number 2, October 2001
|
|
|---|---|---|
| Page(s) | 282 - 288 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and opticalproperties | |
| DOI | https://doi.org/10.1209/epl/i2001-00518-y | |
| Published online | 01 December 2003 | |
Direct calculation of the angular dependence of interlayer couplings in Fe/Cr superlattices with interfacial imperfections
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
Received:
5
February
2001
Accepted:
26
July
2001
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 magnetic moments maps and the interlayer couplings are obtained directly from self-consistent tight-binding band structure calculations allowing to discuss the results in the proximity magnetism framework. We show that the bilinear-biquadratic expression for the coupling energy fits nicely the calculated interlayer couplings curves in all considered cases.
PACS: 71.20.Be – Transition metals and alloys / 75.70.-i – Magnetic properties of thin films, surfaces, and interfaces / 75.70.Cn – Interfacial magnetic properties (multilayers)
© EDP Sciences, 2001
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