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Half-metallic ferromagnetism induced by dynamic electron correlations in VAs

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arxiv cond-mat/0602112 v2 pith:CKR4B55B submitted 2006-02-05 cond-mat.str-el cond-mat.mtrl-sci

L. Chioncel , Ph. Mavropoulos , M. Ležaić , S. Blügel , E. Arrigoni , M.I. Katsnelson , A.I. Lichtenstein This is my paper · ORCID
classification cond-mat.str-elcond-mat.mtrl-sci
keywords correlationsdensity-functionaldynamicdynamicalferromagnetichalf-metallicstatestructure
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The electronic structure of the VAs compound in the zinc-blende structure is investigated using a combined density-functional and dynamical mean-field theory approach. Contrary to predictions of a ferromagnetic semiconducting ground state obtained by density-functional calculations, dynamical correlations induce a closing of the gap and produce a half-metallic ferromagnetic state. These results emphasize the importance of dynamic correlations in materials suitable for spintronics.

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