Correlated electronic structure of LaO1-xFxFeAs.
We compute the electronic structure, momentum resolved spectral function and optical conductivity of the new superconductor LaO1-xFxFeAs within the combination of the density functional theory and 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.
Haule
K
K
Department of Physics, Rutgers University, Piscataway, New Jersey 08854, USA.
Shim
J H
JH
Kotliar
G
G