First principles approach to the electronic structure of strongly correlated systems: combining GW and DMFT

A. Georges; F. Aryasetiawan; S. Biermann

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arxiv cond-mat/0207419 v2 pith:KZR5PXXC submitted 2002-07-17 cond-mat.str-el

First principles approach to the electronic structure of strongly correlated systems: combining GW and DMFT

S. Biermann , F. Aryasetiawan , A. Georges This is my paper

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We propose a dynamical mean field approach for calculating the electronic structure of strongly correlated materials from first principles. The scheme combines the GW method with dynamical mean field theory, which enables one to treat strong interaction effects. It avoids the conceptual problems inherent to conventional ``LDA+DMFT'', such as Hubbard interaction parameters and double counting terms. We apply a simplified version of the approach to the electronic structure of nickel and find encouraging results.

First principles approach to the electronic structure of strongly correlated systems: combining GW and DMFT

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