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Phys. Rev. Lett. 71, 1923–1926 (1993)

[Issue 12 – 20 September 1993 ]

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Simplified first principles approach to exchange coupling in magnetic multilayers

Mark van Schilfgaarde

SRI International, 333 Ravenswood Avenue, Menlo Park, California 94025

Frank Herman

IBM Almaden Research Center, San Jose, California 95120

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/abstract/PRL/v71/p1923
DOI: 10.1103/PhysRevLett.71.1923
PACS: 75.50.Rr, 73.20.Dx, 75.30.Et, 75.70.Fr

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References

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