Cadmium diffusion in thin films

Abstract
Cadmium diffusion in thin films was studied in the temperature range 165 - . films were deposited by the flash evaporation technique. A thin film of cadmium was deposited and annealed at different temperatures. Cadmium depth profiles were determined by the Rutherford backscattering technique. These profiles were fitted to a complementary error function solution and the diffusion coefficients at four different temperatures were evaluated. The Arrhenius plot of the diffusion coefficients could be fitted to the equation . It is shown that the cadmium diffuses via copper vacancies.