Electronic thermal conductivity of disordered metals

Abstract

We calculate the thermal conductivity of interacting electrons in disordered metals. In our analysis we point out that the interaction affects thermal transport through two distinct mechanims, associated with quantum interference corrections and energy exchange of the quasi particles with the electromagnetic environment, respectively. The latter is seen to lead to a violation of the Wiedemann-Franz law. Our theory predicts a strong enhancement of the Lorenz ratio $\kappa /\sigma T$ over the value which is predicted by the Wiedemann-Franz law, when the electrons encounter a large environmental impedance.

4 pages

References in corpus (1)

• Quasiclassical theory of charge transport in disordered interacting electron systems

Cited by in corpus (4)

• The transfer of energy between electrons and ions in solids
• Thermal transport in a granular metal array
• Deviation from the Wiedemann-Franz law induced by nonmagnetic impurities in overdoped La_{2-x}Sr_{x}CuO_{4}
• Interaction corrections: temperature and parallel field dependencies of the Lorentz number in two-dimensional disordered metals