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APS » Phys. Rev. Lett. » Volume 100 » Issue 22

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Phys. Rev. Lett. 100, 226402 (2008) [4 pages]

Correlated Electronic Structure of LaO_1-xF_xFeAs

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K. Haule, J. H. Shim, and G. Kotliar
Department of Physics, Rutgers University, Piscataway, New Jersey 08854, USA

Received 9 March 2008; published 2 June 2008

Wecompute the electronic structure, momentum resolved spectral function and opticalconductivity of the new superconductor LaO_1-xF_xFeAs within the combination ofthe density functional theory and dynamical mean field theory. Wefind that the compound in the normal state is astrongly correlated metal and the parent compound is a badmetal at the verge of the metal insulator transition. Weargue that the superconductivity is not phonon mediated.

©2008 The American Physical Society

URL:	http://link.aps.org/doi/10.1103/PhysRevLett.100.226402
DOI:	10.1103/PhysRevLett.100.226402
PACS:	71.27.+a; 71.30.+h 71.27.+a Strongly correlated electron systems; heavy fermions 71.30.+h Metal-insulator transitions and other electronic transitions YEAR: 2008

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