ION-TRANSPORT IN FAST-ION CONDUCTORS - SPECTRA AND MODELS

In fast ion conductors, the dynamics of the hopping motion of the mobi le ions determines the shape of their hopping conductivity spectra. Th erefore, analysis of complete conductivity spectra is a useful tool fo r extracting details of the correlated and relaxational hopping behavi our of the ions. The paper shows how this is done on the basis of the jump relaxation model. Furthermore, the model is reconsidered and exte nded, with a view to describe not only crystalline but also glassy ele ctrolytes.