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Phys. Rev. Lett. 71, 1923–1926 (1993)

Simplified first principles approach to exchange coupling in magnetic multilayers

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Mark van Schilfgaarde
SRI International, 333 Ravenswood Avenue, Menlo Park, California 94025

Frank Herman
IBM Almaden Research Center, San Jose, California 95120

Received 3 May 1993; published in the issue dated 20 September 1993

We determined oscillatory periods, phases, and coupling strengths for [001] Fe/V and Fe/Cr, using a highly accurate, non-self-consistent first-principles method. The periods obtained for Fe/Cr are consistent with experiment both for paramagnetic and antiferromagnetic Cr. These results clearly show how the Cr antiferromagnetism affects the exchange coupling. For [001] Fe/V, we predict short and long periods that have not yet been observed, but provide tests for the theory. We also discuss the merits of our computational approach.

© 1993 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.71.1923
DOI:
10.1103/PhysRevLett.71.1923
PACS:
75.50.Rr, 73.20.Dx, 75.30.Et, 75.70.Fr