Physics – Condensed Matter – Materials Science
Scientific paper
2010-05-29
Eur. Phys. J. B 61, 173-179 (2008)
Physics
Condensed Matter
Materials Science
7 pages, 8 figures
Scientific paper
10.1140/epjb/e2008-00051-y
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.
Jochym PawełT
Oles' Andrzej M.
Parlinski Krzysztof
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