Low-energy models for correlated materials: bandwidth renormalization from Coulombic screening.
Phys Rev Lett
; 109(12): 126408, 2012 Sep 21.
Article
em En
| MEDLINE
| ID: mdl-23005970
ABSTRACT
We provide a prescription for constructing Hamiltonians representing the low-energy physics of correlated electron materials with dynamically screened Coulomb interactions. The key feature is a renormalization of the hopping and hybridization parameters by the processes that lead to the dynamical screening. The renormalization is shown to be non-negligible for various classes of correlated electron materials. The bandwidth reduction effect is necessary for connecting models to materials behavior and for making quantitative predictions for low-energy properties of solids.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
/
Screening_studies
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article