Thermoelectric power of ice containing HF or NH₃

Abstract

Measurements have been made of the homogeneous thermoelectric power of ice containing differing amounts of HF or NH3 impurity. The thermoelectric power is of the order of a few millivolts per degree and depends markedly in both sign and magnitude upon the type and concentration of impurity present. The experimental results are qualitatively in accord with the theory developed by Jaccard but there is considerable numerical disagreement. This is probably due in part to segregation effects in the polycrystalline specimens used. The experiment allows determination of several quantities relating to the effective charge and mobility ratio of current carriers in ice.