A coarse-grained non-Markovian lattice model was presented which described the mixed alkali effect. This feedback-controlled diffusion model permitted qualitative and partially quantitative determination of the dependence upon the concentration, composition, temperature and frequency of the mixed alkali effect. In the present work, the first 2 properties were demonstrated via numerical investigations.

Numerical Investigations of Anomalous Diffusion Effects in Glasses. B.M.Schulz, M.Schulz: Journal of Non-Crystalline Solids, 2006, 352[42-49], 4884-7