Non-quasiparticle states in a half-metallic ferromagnet with antiferromagnetic \(s-d(f)\) interaction

Non-quasiparticle (incoherent) states which play an important role in the electronic structure of half-metallic ferromagnets (HMF) are investigated consistently in the case of antiferromagnetic \(s-d(f)\) exchange interaction. Their appropriate description in the limit of strong correlations require...

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Bibliographic Details
Published in:arXiv.org 2017-01
Main Author: V Yu Irkhin
Format: Article
Language:English
Subjects:
Antiferromagnetism
Electronic structure
Electrons
Ferromagnetism
First principles
Online Access:Get full text
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Summary:Non-quasiparticle (incoherent) states which play an important role in the electronic structure of half-metallic ferromagnets (HMF) are investigated consistently in the case of antiferromagnetic \(s-d(f)\) exchange interaction. Their appropriate description in the limit of strong correlations requires a rearrangement of perturbation series in comparison with the usual Dyson equation. This consideration provides a solution of the Kondo problem in the HMF case and can be important for first-principle HMF calculations performed earlier for ferromagnetic \(s-d(f)\) interaction.
ISSN:2331-8422
DOI:10.48550/arxiv.1501.00345