Oscillatory exchange coupling in Fe/Cr multilayers
- 15 November 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 54 (20) , 14679-14685
- https://doi.org/10.1103/physrevb.54.14679
Abstract
First-principles calculations of the reflection probabilities for Fermi-surface electrons at Cr/Fe interfaces are used to compute the strength of the oscillatory exchange coupling in Cr/Fe multilayers. These calculations show that critical spanning vectors across the N-centered ellipsoids of the Cr Fermi surface cause the long-period coupling for (001), (110), and (211) interfaces. The periods of these spanning vectors, when extracted from the experimental Fermi surface, agree with experimentally measured periods. © 1996 The American Physical Society.Keywords
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