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.
@article{arxiv.cond-mat/0602112,
title = {Half-metallic ferromagnetism induced by dynamic electron correlations in VAs},
author = {L. Chioncel and Ph. Mavropoulos and M. Ležaić and S. Blügel and E. Arrigoni and M. I. Katsnelson and A. I. Lichtenstein},
journal= {arXiv preprint arXiv:cond-mat/0602112},
year = {2007}
}