An analytical microscopic treatment was developed which could correctly describe the relaxation of hopping ionic conduction, from the adiabatic region to the isothermal region in interacting lattice gas systems, with equal rigor. It was demonstrated that the relaxation motion of a single particle in the assembly was intrinsically non-Debye and exhibited Kohlrausch-Williams-Watts relaxation behavior; even without involving interactions between mobile ions. This contrasted with the current view that the anomaly was created by interaction and disorder.

H.Sato, A.Datta, T.Ishikawa: Solid State Ionics, 1996, 86-88[2], 1319-23