The temperature dependence of interlayer exchange coupling - spin waves vs. spacer effects

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dc.creatorSchwieger, S.
dc.creatorKienert, J.
dc.creatorNolting, W.
dc.date2005-03-08
dc.date.accessioned2026-07-07T03:04:04Z
dc.date.available2026-07-07T03:04:04Z
dc.descriptionThere are different mechanisms proposed to be responsible for the temperature dependence of the interlayer exchange coupling (IEC), namely a smearing out of the spacer or interface Fermi surface and excitations and interactions of spin waves. We propose a possibility to separate both effects by calculating the excitation spectrum of an extended Heisenberg model and connecting the results with ferromagnetic resonance (FMR) experiments. To solve the Heisenberg model we use an approximation that was shown to yield excellent results. In this paper the main idea of this procedure is explained and a detailed investigation of the spin wave contribution to the temperature dependence of FMR resonance frequencies and fields is carried out.
dc.description10 pages, 9 figures, PRB in production
dc.identifierhttps://arxiv.org/abs/cond-mat/0503178
dc.identifierhttp://arxiv.org/abs/cond-mat/0503178
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25995
dc.subjectStrongly Correlated Electrons
dc.titleThe temperature dependence of interlayer exchange coupling - spin waves vs. spacer effects
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