Magnetocrystalline anisotropy energy of a transition metal monolayer: a non-perturbative theory

The magnetocrystalline anisotropy energy Eanis for a monolayer of Fe and Ni is determined using a fully convergent tight-binding calculation including s-d hybridization. The spin-orbit interaction λso is treated non-perturbatively. Remarkably, we find Eanis ∝ λso2 and important contributions to Eani...

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Hauptverfasser: Moos, Thorsten (VerfasserIn) , Hübner, Wolfgang (VerfasserIn) , Bennemann, Karl-Heinz (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 1996
In: Solid state communications
Year: 1996, Jahrgang: 98, Heft: 7, Pages: 639-643
ISSN:1879-2766
DOI:10.1016/0038-1098(95)00808-X
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/0038-1098(95)00808-X
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/003810989500808X
Volltext
Verfasserangaben:T.H Moos, W. Hübner and K.H Bennemann

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520 |a The magnetocrystalline anisotropy energy Eanis for a monolayer of Fe and Ni is determined using a fully convergent tight-binding calculation including s-d hybridization. The spin-orbit interaction λso is treated non-perturbatively. Remarkably, we find Eanis ∝ λso2 and important contributions to Eanis due to the lifting of degeneracies near the Fermilevel. This is supported by the calculated decrease of the anisotropy energy with increasing temperature on a scale of several hundred K. Our results clarify the present debate on the origin of Eanis. 
650 4 |a A. magnetic films and multilayers 
650 4 |a D. electronic band-structure 
650 4 |a D. spin-orbit effects 
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