Electronic and magnetic properties of the (111) surfaces of NiMnSb

Details Electronic and magnetic properties of the (111) surfaces of NiMnSb Electronic and magnetic properties of the (111) surfaces of NiMnSb

2004-08-06

arxiv.org/abs/cond-mat/0408131v1

Journal of Magnetism and Magnetic Materials 288, 411 (2005)

Physics

Condensed Matter

Materials Science

Scientific paper

10.1016/j.jmmm.2004.09.130

Using an ab-initio electronic structure method, I study the (111) surfaces of the half-metallic NiMnSb alloy. In all cases there is a very pronounced surface state within the minority gap which destroys the half-metallicity This state survives for several atomic layers below the surface contrary to the (001) surfaces where surface states were located only at the surface layer. The lower dimensionality of the surface leads in general to large enhancements of the surface spin moments.

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