Abstract
It is demonstrated that the mechanism of charged edge dislocation locking in an ionic crystal due to dislocation excitation in the electric field generated by longitudinal forced ion oscillations plays a significant role. An expression is derived for the locking force acting on the dislocation and caused by radiation of longitudinal optical phonons. An expression for the intensity of the Cerenkov radiation of the moving dislocation polariton is presented. The efficiencies of different locking mechanisms are compared.
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