Magnetic anisotropy of an impurity in a semi-infinite host

L. Szunyogh, B. L. Györffy

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We investigate the interaction of a magnetic (Fe) impurity with the surface of a nonmagnetic (Au) semi-infinite host on the bases of fully relativistic spin-polarized first principles calculations. We show that the surface induces a magnetic anisotropy on the impurity, however, it is questionable whether the anisotropy coupling constant K is sufficiently large to explain the thickness dependence of the Kondo amplitude B in thin films of dilute FecAu1-c alloys. We also find that K(d) is an oscillating function of the distance d between the impurity and the surface with an amplitude which falls as l/d2 and a period which is determined by the shape of the Fermi surface of the bulk Au host.

Original languageEnglish
Pages (from-to)3765-3768
Number of pages4
JournalPhysical Review Letters
Volume78
Issue number19
Publication statusPublished - 1997

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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