Impurity scattering in strongly correlated metals close to the Mott transition

Details Impurity scattering in strongly correlated metals close to the Mott transition Impurity scattering in strongly correlated metals close to the Mott transition

2007-06-11

arxiv.org/abs/0706.1458v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 figures

Scientific paper

This work explores a simple approximation to describe isolated impurity scattering in a strongly correlated metal. The approximation combines conventional one electron scattering theory and the Dynamic Mean Field Theory to describe strong correlations in the host. It becomes exact in several limits, including those of very weak and very strong impurity potentials. Original electronic structure appears at the impurity site when the impurity potential strength is moderate and the host is close to the Mott transition. Our results may provide useful guidance for interpretation of scanning tunneling microscopy experiments in strongly correlated systems.

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