The relation between the extended J-diffusion model of McClung and the dielectric relaxation of an ensemble of permanent dipoles was studied. The predictions of the model were compared with results obtained from molecular dynamics experiments on systems of rough spheres.

Rough-Spheres Molecular Dynamics, J-Diffusion Model and Dielectric Relaxation. Kestemont, E.: Journal of Physics C, 1976, 9[13], 2651-65