The study of the properties of charged dislocations in semiconductor crystal is now a large independent field of semiconductor physics. Latest investigations indicate that changes in the electronic subsystem of II-VI semiconductors significantly effect the motion of dislocation.The photoplastic effect in crystalline materials has been extensively investigated over the last two decades. The phenomena of photoplastic effect (PPE), photoplastic after-effect (PPAE) and photoplastic memory effect (PPME) have attracted a lot of attention for the last four decades. A systematic measurement of PPE...