Abstract
Abstract The thermopowers of 1 at. % alloys of Cd, In, Sn, Sb, Zn, Ga, Ge in Ag have been measured from 4°K to 300°K. The phonon drag contribution has been separated from the diffusion thermopower, and its magnitude has been studied as a function of the different solute atoms. It is assumed that the difference in phonon drag thermopower magnitude arises from the differing phonon scattering cross sections of the impurity atoms. It is apparent that differences in phonon scattering caused by difference in solute masses alone are insufficient to explain the experimental results. Good correlation of experiment and theory is obtained by including the effects of phonon scattering due to an elastic strain field.
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