Abstract
Thermostimulated depolarization currents are studied and analyzed. As a result, a mechanism of dielectric relaxation is developed for α-LiIO3 crystals with the interatomic distance about 0.55 nm. This mechanism is due to formation of the Н3О+ and OН− defects resulting from the displacement of a proton along the valence bond in water molecules and its following migration through tunneling both inside the IO 3 − ions and between these ions in the neighboring layers. In addition, the НIO3 and НI3О8 impurities can serve as proton donors. The negative maximum of thermostimulated depolarization currents caused by false hysteresis loops due to a conductivity lag is explained.
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