KINETICS OF RELAXATION PROCESS OF HOPPING IONIC-CONDUCTION IN LATTICE-GAS SYSTEMS

An analytical, microscopic treatment which can correctly describe the relaxation process of hopping ionic conduction from the adiabatic regi on to the isothermal region with equal rigor has been developed in int eracting lattice gas systems. It is demonstrated that the relaxation m otion of a single particle in the assembly is intrinsically non-Debye and follows the Kohlrausch-Williams-Watts (KWW) relaxation behavior ev en without interactions among mobile ions. This dependence is an appar ent contrast to the current view that the anomaly is 'created' by inte raction and disorder. Some conclusions with respect to the universal d ynamic response observed in solid electrolytes are drawn from results of the analytical treatment.