Classification of the electronic correlation strength in the Fe-pnictides: The case of the parent compound BaFe2As2

Details Classification of the electronic correlation strength in the Fe-pnictides: The case of the parent compound BaFe2As2 Classification of the electronic correlation strength in the Fe-pnictides: The case of the parent compound BaFe2As2

2009-06-17

arxiv.org/abs/0906.3218v1

Phys. Rev. B 80, 092501 (2009)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 3 figures

Scientific paper

10.1103/PhysRevB.80.092501

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.

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