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Non-RKKY oscillations of exchange coupling in magnetic multilayers

M. S. Ferreira, J. d'Albuquerque e Castro, D. M. Edwards, J. Mathon

cond-matarXiv:cond-mat/9511065

Abstract

It is shown how the exchange coupling between two ferromagnetic planes embedded in an infinite non-magnetic metal, regarded as a function of the distance between the planes, may contain important components which oscillate with periods not predicted by RKKY theory. The interesting case of a FCC(110) structure with a Cu-like Fermi surface is discussed in detail.

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