Effect of electron-electron interaction on thermoelectric power in impure metals

A new kinetic phenomenon related to the effect of electron-electron scattering on the thermoelectric coefficient η a conductor with a small electron mean free path l is considered. The effect is proportional to the electron-hole asymmetry factor (εFτ)−1 and the real part of the diffusion-enhanced Coulomb propagator with characteristic wave vectors of up to l−1. Unlike weak localization effects, in the two-dimensional case this effect results in a logarithmic temperature dependence of η and yields the major contribution to the differential thermoelectric power.