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Composition-driven spin-reorientation transition in ferromagnetic alloy films

Journal Article · · Physical Review, B: Condensed Matter
; ; ; ; ;  [1]
  1. Max-Planck-Institut fuer Mikrostrukturphysik, Weinberg 2, D-06120 Halle (Germany)

A spin-reorientation transition upon a variation of the Fe concentration x is observed in ultrathin fcc Fe{sub x}Co{sub 1{minus}x} alloy films on Cu(001) for x{gt}77{percent}. For film thicknesses below 4 monolayers the magnetic easy axis changes from in-plane on the Co-rich side to out-of-plane on the Fe-rich side. Since no structural transitions accompany this spin-reorientation transition, varying the alloy composition can be interpreted as varying the number of 3d electrons. Upon changing the average d-band filling by as little as 0.1 electron strong changes of the anisotropy energy are observed. {copyright} {ital 1998} {ital The American Physical Society}

OSTI ID:
573983
Journal Information:
Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 6 Vol. 57; ISSN 0163-1829; ISSN PRBMDO
Country of Publication:
United States
Language:
English

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