ELECTRON-EMISSION FROM FERROELECTRIC PLATE STIMULATED BY SWITCHING

The behavior of a ferroelectric sample in the form of a thin plate in an electric field is considered in the work. It is assumed that the re ason of the appearance of emission is the presence of the electric fie ld due to non-compensated charges arising with the displacement of the domain wall on the ferroelectric surface in the place of the domain w all exit at the sample surface as well as on the surface of the domain wall itself sagged in the external electric field. The value of the e quilibrium displacement for domain boundaries in the external field is calculated in the frames of models of free domain boundaries and doma in walls pinned by defects. This is the basis for determination of ele ctric fields accompanying the shifts of domain boundaries. The value o f the emission current stimulated by switching of a material is also c alculated.