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arXiv · 0902.3109

Majority-spin non-quasiparticle states in half-metallic ferrimagnet Mn$_2$VAl

L. Chioncel·E. Arrigoni·M. I. Katsnelson·A. I. Lichtenstein
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Abstract

The density of non-quasiparticle states in the ferrimagnetic full-Heuslers Mn$_2$VAl alloy is calculated from first principles upon appropriate inclusion of correlations. In contrast to most half-metallic compounds, this material displays an energy gap in the majority-spin spectrum. For this situation, non-quasiparticle states are located below the Fermi level, and should be detectable by spin-polarized photoemission. This opens a new way to study many-body effects in spintronic-related materials.

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L. Chioncel, E. Arrigoni, M. I. Katsnelson, A. I. Lichtenstein. 2009-02-18. Majority-spin non-quasiparticle states in half-metallic ferrimagnet Mn$_2$VAl. https://doi.org/10.1103/physrevb.79.125123

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