Computational studies of thermoelectricity in strongly correlated electron systems

We compute transport properties of strongly correlated electron systems with special attention to thermoelectric properties. The transport parameters are computed within the dynamical mean field theory using the non-crossing approximation and iterated perturbation theory to solve the dynamical mean field equations. The results of our calculations compare favorably with experiments on La_1−xSr_xTiO ₃.; In the second half of the thesis we develop a method for computing the transport properties of strongly correlated materials using real bandstructure data and self energy provided by extensions of the dynamical mean field theory to real systems. The method is tested on data for alkali and noble metals using a simple functional form for self energies. The method is also applied to compute the transport parameters for a simple, multiorbital, t2g model of the La_1−xSr_x TiO₃ system and the results are compared to data from plain LDA bandstructure calculations.