Classification of the electronic correlation strength in the Fe-pnictides: The case of the parent compound BaFe2As2
Autor: | Skornyakov, S. L., Efremov, A. V., Skorikov, N. A., Korotin, M. A., Izyumov, Yu. A., Anisimov, V. I., Kozhevnikov, A. V., Vollhardt, D. |
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Rok vydání: | 2009 |
Předmět: | |
DOI: | 10.48550/arxiv.0906.3218 |
Popis: | Electronic correlations in the Fe-pnictide BaFe2As2 are explored within LDA+DMFT, the combination of density functional theory with dynamical mean-field theory. While the correlated band structure is substantially renormalized there is only little transfer of spectral weight. The computed k-integrated and k-resolved spectral functions are in good agreement with photoemission spectroscopy (PES) and angular resolved PES experiments. Making use of a general classification scheme for the strength of electronic correlations we conclude that BaFe2As2 is a moderately correlated system. Comment: 4 pages, 3 figures |
Databáze: | OpenAIRE |
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