Influence of Dislocation on Diffusion Rate ofFCenters in KCl

Abstract
An experimental confirmation of the F-center diffusion along disordered interfaces in KCl single crystals is given. KCl single crystals were exposed to potassium vapor after (a) they had been bent around the [100] crystal axis yielding only one slip system, or (b) had been compressed along a [100] direction yielding a single pair of mutually perpendicular slip systems. The crystal showed a distinct anisotropy of F-center diffusion. The explanation for this anisotropy can be based on the crystal dislocations.