The electrical conductivity of silver bromide a re-interpretation

Abstract

The variation in the electrical conductivity of silver bromide, at temperatures from 200° to 410°C, as increasing amounts of cadmium bromide are added in solid solution, is re-examined in the light of a modified theory. This takes account of the contribution to the conductivity which may arise through the formation and dissociation of associated vacancy-interstitial pairs in the cationic sub-lattice. New values are derived for the concentrations of interstitial cations and cationic lattice vacancies in pure silver bromide, for the ratio of the mobilities of these two types of defect, and for the vacancy diffusivity.