Half-metallic ferromagnetism induced by dynamic electron correlations in VAs

被引：40

作者：

Chioncel, L. ^{[1
]}

Mavropoulos, Ph.

Lezaic, M.

Bluegel, S.

Arrigoni, E.

Katsnelson, M. I.

Lichtenstein, A. I.

机构：

[1] Graz Univ Technol, Inst Theoret Phys, A-8010 Graz, Austria

[2] Univ Oradea, Fac Sci, RO-410087 Oradea, Romania

[3] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany

[4] Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands

[5] Univ Hamburg, Inst Theoret Phys, DE-20355 Hamburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.96.197203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

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