EFFECT OF IMPURITIES ON THERMOELECTRIC-POWER DUE TO PHONON DRAG IN METALS

The effect of inelastic impurity scattering of electrons on the thermo electric power due to phonon drag in metals has been studied. It is sh own that this is the main cause of the thermoelectric power suppressio n due to doping at low temperatures. The thermoelectric power in a met al with a quadratic electron spectrum has been calculated as a functio n of temperature and impurity concentration. In addition to the impuri ty concentration, the correction to the thermoelectric power due to in elastic scattering contains the large factor Theta(D)/T. (C) 1997 Amer ican Institute of Physics.