The occurrence of anomalous Hg diffusion into bulk grown Hg0.8Cd0.2Te crystals was observed at 260C. The Hg in-diffusion was found to become more rapid in the presence of a Hg vapor source which had a lower Te chemical potential than that of the crystals. The observed diffusion behavior was explained in terms of Te precipitation and out-diffusion during annealing. The anomalous diffusion characteristics were typical of diffusion in a disordered medium.

R.K.Sharma, V.K.Singh, B.B.Sharma: Japanese Journal of Applied Physics - 1, 1992, 31[3], 862-3