Half-metallic ferromagnetism induced by dynamic electron correlations in VAs

Citation:

Chioncel L, Mavropoulos P, Lezaic M, Blügel S, Arrigoni E, Katsnelson MI, Lichtenstein AI. Half-metallic ferromagnetism induced by dynamic electron correlations in VAs. PHYSICAL REVIEW LETTERS. 2006;96:197203.

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.