Abstract
A strongly correlated electron system is a system that the Coulomb repulsion between electrons is too strong to hold the one-electron picture in solids. As a result, it can exhibit superior functions to conventional solids in which one-electron picture (band picture) is valid. Recently, thermoelectricity due to strong correlation has attracted a keen interest, and some transition-metal oxides, which are typical examples of strongly correlated electron system, can be a good thermoelectric material. In this article we will review the thermoelectric and thermodynamic properties of the transition-metal oxides through thermopower measurement.
