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From Clusters to Crystals: Application of the Dynamical Mean-Field Theory to Materials

Seminar Tuesday, 02/02/2010 15:00 - 16:00

Speakers: Jan Kuneš
Place: Na Slovance, main lecture hall
Organisers: Department of Condensed Matter Theory

Abstract:
The dynamical mean-field theory (DMFT) was developed in the 1990's for investigation of the Hubbard model. Unlike many other many-body approaches it can be easily extended to multi-band systems and thus is suitable for material specific calculations, usually called LDA+DMFT. In the first part of the talk, I will review some applications of LDA+DMFT with emphasis on qualitative differences from the results of standard bandstructure methods. In the second part, I will present our recent results on the correlation effects in band insulators, aimed at description of materials such as FeSi.

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