We study the thermoelectric transport properties in the three-dimensional Anderson model of localization near the metal-insulator transition (MIT). In particular, we investigate the dependence of the thermoelectric power *S*, the thermal conductivity *K*, and the Lorenz number *L*0 on temperature *T*. We first calculate the *T* dependence of the chemical potential μ from the number density *n* of electrons at the MIT using an averaged density of states obtained by diagonalization. Without any additional approximation, we determine from the behavior of *S*, *K* and *L*0 at low *T* as the MIT is approached. We find that the d.c. conductivity and *K* decrease to zero at the MIT as *T* -\> 0 and show that *S* does not diverge. Both *S* and *L*0 become temperature independent at the MIT and depend only on the critical behavior of the conductivity.

},
doi = {10.1007/s100510050994},
author = {Cristine Villagonzalo and Rudolf A R{\"o}mer and Michael Schreiber}
}