title: Electronic correlations in manganites
abstract: The influence of local electronic correlations on the properties of colossal magnetoresistive manganites is investigated. To this end, a ferromagnetic two-band Kondo lattice model is supplemented with the local Coulomb repulsion missing in this model and is analyzed within dynamical mean-field theory. Results for the spectral function, optical conductivity, and the paramagnetic-to-ferromagnetic phase transition show that electronic correlations have drastic effects and may explain some experimental observations.
authors.affiliation: Theoretische Physik III, Elektronische Korrelationen und Magnetismus, Universitat Augsburg, 86135 Augsburg, Germany.
authors.initials: K
authors.lastname: Held
authors.initials: D
authors.lastname: Vollhardt