Analysis of potential barriers for ion transport in ionic conductors

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Potential barriers of the hopping process for fast ion transport in solids were estimated from single-crystal X-ray diffraction intensities. A newly-presented method was successfully applied to one-dimensional (1d) ionic conductors containing K and Rb ions as mobile species. The validity of the method was also confirmed for a 1d ionic conductor with a superlattice of 3 times the sublattice along the conduction path. It has consequently become easier to discuss relations between structural parameters and ion conductivities in detail.