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.
Rok vydání:	2009
Předmět:	Condensed Matter - Strongly Correlated Electrons Condensed Matter - Materials Science Strongly Correlated Electrons (cond-mat.str-el) Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences Condensed Matter::Strongly Correlated Electrons
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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