Electrical conductivity for the strongly correlated and hybridized Hubbardband

The magnetic and electrical transport properties of strongly correlated Hub bard band (f-band) hybridizing with the non-correlated conduction band re-b and) was studied. The many-body model Hamiltonian was treated within the mo dified alloy analogy scheme and the resulting one-body problem was solved w ith the use of coherent potential approximation. Within the Kubo-Greenwood formalism the de electrical conductivity for bce magnetic system was calcul ated and its variation with temperature and number of electrons was examine d for different values of the Coulomb and hybridization (Sr) coupling const ants. We found that the effect of strong correlations and hybridization on the conductivity is similar to that produced by the scattering due to the s -f interaction (spin disorder resistivity).