Orientational dependence of the oscillatory exchange interaction in Co/Cu/Co

M. T. Johnson, R. Coehoorn, J. J. de Vries, N.W.E. McGee, J. aan de Stegge, P.J.H. Bloemen

Research output: Contribution to journalArticleAcademicpeer-review

156 Citations (Scopus)

Abstract

A strong oscillatory exchange coupling has been discovered in epitaxial (111) and (110) Co/Cu/Co sandwiches with wedge-shaped Cu layers, deposited by molecular-beam epitaxy (MBE) on single-crystal substrates. This finding proves the intrinsic nature of the strong antiferromagnetic coupling in (111)-textured sputtered Co/Cu multilayers. Combined with recent results on (100) Co/Cu/Co MBE-grown samples, it becomes evident that the nature of the oscillations in Co/Cu/Co depends markedly on growth direction, agreeing with predictions invoking the topology of the Fermi surface of the interlayer Cu.

Original languageEnglish
Pages (from-to)969-972
Number of pages4
JournalPhysical Review Letters
Volume69
Issue number6
DOIs
Publication statusPublished - 1 Jan 1992

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