Correlated electronic structure of LaOFeAs

K. Haule; J. H. Shim; G. Kotliar

doi:10.1103/physrevlett.100.226402

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arXiv · 0803.1279

Correlated electronic structure of LaOFeAs

K. Haule·J. H. Shim·G. Kotliar

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Abstract

We compute the electronic structure, momentum resolved spectral function and optical conductivity of the new superconductor LaO$_{1-x}$F$_x$FeAs within the combination of the Density functional theory and the Dynamical Mean Field Theory. We find that the compound in the normal state is a strongly correlated metal and the parent compound is a bad metal at the verge of the metal insulator transition. We argue that the superconductivity is not phonon mediated.

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K. Haule, J. H. Shim, G. Kotliar. 2008-03-09. Correlated electronic structure of LaOFeAs. https://doi.org/10.1103/physrevlett.100.226402

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