Critical behavior of the thermoelectric transport properties in amorphous systems near the metal-insulator transition
C. Villagonzalo, R. A. Roemer, M. Schreiber, A. MacKinnon
Abstract
The scaling behavior of the thermoelectric transport properties in disordered systems is studied in the energy region near the metal-insulator transition. Using an energy-dependent conductivity σ obtained experimentally, we extend our linear-response-based transport calculations in the three-dimensional Anderson model of localization. Taking a dynamical scaling exponent z in agreement with predictions from scaling theories, we show that the temperature-dependent σ, the thermoelectric power S, the thermal conductivity K and the Lorenz number L0 obey scaling.
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