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Ab initio calculations of magnetic structure and lattice dynamics of Fe/Pt multilayers

Author

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  • P. T. Jochym
  • K. Parlinski
  • A. M. Oleś

Abstract

The magnetization distribution, its energetic characterization by the interlayer coupling constants and lattice dynamics of (001)-oriented Fe/Pt multilayers are investigated using density functional theory combined with the direct method to determine phonon frequencies. It is found that ferromagnetic order between consecutive Fe layers is favoured, with the enhanced magnetic moments at the interface. The bilinear and biquadratic coupling coefficients between Fe layers are shown to saturate fast with increasing thickness of nonmagnetic Pt layers which separate them. The phonon calculations demonstrate a rather strong dependence of partial iron phonon densities of states on the actual position of Fe monolayer in the multilayer structure. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008

Suggested Citation

  • P. T. Jochym & K. Parlinski & A. M. Oleś, 2008. "Ab initio calculations of magnetic structure and lattice dynamics of Fe/Pt multilayers," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 61(2), pages 173-179, January.
    • Handle: RePEc:spr:eurphb:v:61:y:2008:i:2:p:173-179
    DOI: 10.1140/epjb/e2008-00051-y
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