Classification of the electronic correlation strength in the iron pnictides: The case of the parent compound BaFe2 As2

S. L. Skornyakov, A. V. Efremov, N. A. Skorikov, M. A. Korotin, Yu A. Izyumov, V. I. Anisimov, A. V. Kozhevnikov, D. Vollhardt

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79 Citations (Scopus)

Abstract

Electronic correlations in the Fe-pnictide BaFe2 As2 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 BaFe2 As2 is a moderately correlated system.

Original languageEnglish
Article number092501
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume80
Issue number9
DOIs
Publication statusPublished - 3 Sep 2009
Externally publishedYes

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