title: Half-metallic ferromagnetism induced by dynamic electron correlations in VAs.
abstract: 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.
authors.affiliation: Institute of Theoretical Physics, Graz University of Technology, Austria.
authors.forename: L
authors.initials: L
authors.lastname: Chioncel
authors.forename: Ph
authors.initials: P
authors.lastname: Mavropoulos
authors.forename: M
authors.initials: M
authors.lastname: Lezaić
authors.forename: S
authors.initials: S
authors.lastname: Blügel
authors.forename: E
authors.initials: E
authors.lastname: Arrigoni
authors.forename: M I
authors.initials: MI
authors.lastname: Katsnelson
authors.forename: A I
authors.initials: AI
authors.lastname: Lichtenstein