ELECTRON-EMISSION STIMULATED BY SWITCHING OF FERROELECTRICS

Influence of the frequency f of the switching field on the value of th reshold field E-th for the emission process in tryglicine sulphate (TG S) monocrystal as well as in barium titanate and in lead zirconate tit anate (PZT) ceramics is investigated. We have experimentally observed the presence of as growth as dropping of the field E-th with the incre ase of frequency in TGS crystal for different temperatures and the pre sence of the falling dependence E-th(f) for ceramics samples. The corr elation between parameters of emission spectra and the character of th e switching process is discussed.