Chapter IV conduction phenomena in solid dielectrics

The lectures given at the International Summer School on Solid-State Physics at Varenna, Italy, have been published as a special issue of Nuovo Cimento (1). Some of the articles are concerned with topics which are of basic interest in the study of conduction in dielectrics, but are too general to be inserted under the detailed headings below. The lecture by Seitz (page 414), on point imperfections in solids, dealt in passing with conduction mechanisms in alkali and silver halides. Lidiard (page 620) considered the correlation effects which are encountered when the vacancy or interstitial mechanism of diffusion takes place in ionic crystals of various structures, and Brown (page 600) gave a review of the methods which have been used to find the mobility of conduction electrons in silver halides.