Relaxation process of hopping ionic conduction in lattice gas models

Abstract

An analytical, microscopic treatment has been developed for the relaxation process of hopping ionic conduction in interacting lattice gas systems to gain understanding of the origin of the universal dynamic response in solid electrolytes. Here, it is demonstrated that the relaxation motion of mobile ions is intrinsically non-Debye and follows the Kohlrausch-Williams-Watts relaxation behavior even without interactions among mobile ions. This is an apparent contrast to the current view that the anomaly is “created” by interaction and disorder.