Theory of Thermopower in Transition Metal Oxides

Abstract

In this review, I discuss the effect of spin and orbital degrees of freedom on thermopower in the transition metal oxides. The thermopower is nothing but the entropy flow along with the electric current. In the strongly correlated electron systems, the Coulomb interaction causes the enhancement of the entropy flow by spin and orbital degrees of freedom. I propose the new path to thermoelectrics on the strongly correlated electron systems.