Theory of Thermoelectric Power of Ionic Crystals, III

When temperature gradient is given in a specimen of AgCl doped with CuCl, its thermoelectric power changes with time owing to the thermal diffusion of copper ions, and then reaches its steady value. If the temperature gradient is removed after such a steady state is attained, the electronmotive force continues to exist for a while, but it decreases with time according as the copper ions diffuse again to the previous homogeneous distribution. The expressions for such processes are derived under proper assumptions. The time constant for them is estimated with use of the conductivity data of Ebert and Teltow. The information on the heat of transport of Cu + will be obtained if experiments on such processes are carried out.