ELECTRICAL EFFECTS ACCOMPANYING HIGH-TEMPERATURE DEFORMATION OF CSI CRYSTALS

Several electrical effects like surface polarization, ion and electron emission, and after-deformation thermo-stimulated depolarization (ADT SD) accompany the high-temperature deformation of CsI single crystals. From the dependencies of magnitude and polarity of induced current on degree and temperature of deformation it is concluded that positively charged dislocations and point defects of different types take part i n the high-temperature deformation of CsI single crystals. As a result spatial separation of the charges occurs in the field of point defect s, the number of their types being the larger, the higher the deformat ion temperature is.