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Electronic Correlations in Manganites

K. Held·D. Vollhardt
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Abstract

The influence of local electronic correlations on the properties of colossal magnetoresistance 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.

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K. Held, D. Vollhardt. 2000-04-04. Electronic Correlations in Manganites. https://doi.org/10.1103/physrevlett.84.5168

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