A computational method was described which modelled ionic conductivity in single-alkali glasses. Monte Carlo simulations were used to investigate the transport of ions between spatially distributed sites. The results of the simulation showed that the existence of a site dispersion played an essential role, and appeared to be sufficient to produce the experimentally observed dependence of conductivity upon the modifier content.

R.A.Montani: Solid State Ionics, 1996, 89[3-4], 287-90