Electron correlation effects in the half-metallic NiMnSb within a cluster-perturbation approach with ab-initio parameters

Using a combination of electronic-structure and many-body calculations, we investigate correlations effects in the halfmetallic ferromagnet NiMnSb. A realistic many-body Hamiltonian, containing only Mn-d orbitals shows the importance of non-quasiparticle states just above the Fermi level. Our result...

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Bibliographic Details
Main Authors: H. Allmaier, L. Chioncel, E. Arrigoni, M. I. Katsnelson, A. I. Lichtenstein
Format: Article
Language:English
Published: Isfahan University of Technology 2008-06-01
Series:Iranian Journal of Physics Research
Subjects:
Online Access:http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-275&slc_lang=en&sid=1