Magnetic anisotropy of ordered and disordered FePd thin films

L. Szunyogh, J. Zabloudil, A. Vernes, P. Weinberger, B. Újfalussy, C. Sommers

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The magnetic anisotropy energy of Fe films, FePd surface alloys, as well as ordered and interdiffused (FenPdm)r superstructures on Pd(100) and Pd(111) are evaluated using a fully relativistic spin-polarized screened Korringa-Kohn-Rostoker method. It is found that only an ordered Fe1Pd1 superstructure grown on Pd(100) exhibits perpendicular magnetism, while for all other systems under investigation the magnetization is oriented in plane. By using the inhomogeneous coherent potential approximation for layered systems, the effect of ordering into (repeated) superstructures can be described ab initio. It is found that already small amounts of interdiffusion can be decisive for the actual value of the magnetic-anisotropy energy. The present theoretical results as compared to experiments indicate that changes in the magnetic-anisotropy energy related to chemical order might arise either through changes in the crystallographic structure or through changes in the electronic structure and Pd-induced spin-orbit coupling.

Original languageEnglish
Article number184408
Pages (from-to)1844081-1844087
Number of pages7
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume63
Issue number18
Publication statusPublished - 2001

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Magnetic anisotropy
Thin films
anisotropy
thin films
Magnetism
Electronic structure
energy
Magnetization
Orbits
electronic structure
orbits
magnetization
approximation
Experiments

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Szunyogh, L., Zabloudil, J., Vernes, A., Weinberger, P., Újfalussy, B., & Sommers, C. (2001). Magnetic anisotropy of ordered and disordered FePd thin films. Physical Review B - Condensed Matter and Materials Physics, 63(18), 1844081-1844087. [184408].

Magnetic anisotropy of ordered and disordered FePd thin films. / Szunyogh, L.; Zabloudil, J.; Vernes, A.; Weinberger, P.; Újfalussy, B.; Sommers, C.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 63, No. 18, 184408, 2001, p. 1844081-1844087.

Research output: Contribution to journalArticle

Szunyogh, L, Zabloudil, J, Vernes, A, Weinberger, P, Újfalussy, B & Sommers, C 2001, 'Magnetic anisotropy of ordered and disordered FePd thin films', Physical Review B - Condensed Matter and Materials Physics, vol. 63, no. 18, 184408, pp. 1844081-1844087.
Szunyogh, L. ; Zabloudil, J. ; Vernes, A. ; Weinberger, P. ; Újfalussy, B. ; Sommers, C. / Magnetic anisotropy of ordered and disordered FePd thin films. In: Physical Review B - Condensed Matter and Materials Physics. 2001 ; Vol. 63, No. 18. pp. 1844081-1844087.
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