2004/01/30 by Silke Biermann, Biermann, Silke, Ferdi Aryasetiawan +3
Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.cond-mat/0401653
22 pages, 3 figures, proceedings of the NATO Advanced Research Workshop on "Physics of Spin in Solids: Materials, Methods, and Applications" in Baku, Azerbaijan, Oct. 2003. To be published in NATO Science Series II, by Kluwer Academic Publishers B.V
arxiv created 2004/01/30 · arxiv updated 2009/12/01
We review a recent proposal of a first principles approach to the electronic structure of materials with strong electronic correlations. The scheme combines the GW method with dynamical mean field theory, which enables one to treat strong interaction effects. It allows for a parameter-free description of Coulomb interactions and screening, and thus avoids the conceptual problems inherent to conventional ``LDA+DMFT'', such as Hubbard interaction \it parameters and double counting terms. We describe the application of a simplified version of the approach to the electronic structure of nickel yielding encouraging results. Finally, open questions and further perspectives for the development of the scheme are discussed.