In the light of recently reported pressure-volume-temperature relationships in diamond, it was shown that the self-diffusion coefficient of diamond as a function of temperature and pressure could be satisfactory reproduced in terms of the bulk elastic and expansivity data by means of a thermodynamic model that interconnects the parameters of point defects to the bulk properties. The calculated self-diffusion coefficients were in good agreement with experimental ones when the uncertainties were taken into account.

Calculation of Self-Diffusion Coefficients in Diamond. Zhang, B., Wu, X.: Applied Physics Letters, 2012, 100[5], 051901