First-principles calculation of the anomalous perpendicular anisotropy in a co monolayer on au(111)

B. Újfalussy, L. Szunyogh, P. Bruno, P. Weinberger

Research output: Contribution to journalArticle

137 Citations (Scopus)

Abstract

We perform fully relativistic spin-polarized local spin density calculations for Au covered Co monolayer on Au(111). In accord with a trend observed in experiments we obtain an enhancement of perpendicular magnetic anisotropy as a function of the Au coverage. The close relationship found between the anisotropies of orbital magnetic moments and the anisotropy energies leads to an interpretation of our results in terms of familiar perturbation theory. By using this framework the anomalous behavior of the magnetic anisotropy energies can be well explained due to changes in the sp-d hybridization at the interface of Co monolayer and Au cap.

Original languageEnglish
Pages (from-to)1805-1808
Number of pages4
JournalPhysical review letters
Volume77
Issue number9
DOIs
Publication statusPublished - Jan 1 1996

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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