Влияние локализованных поверхностных состояний на распределение поляризованности в сегнетоэлектриках-полупроводниках

It is shown, that the local fields connected with reaction of an electronic subsystem of ferroelectrics-semiconductors on an external field, can render decisive influence on polarization distribution in ferroelectrics-semiconductors. Within the limits of this model features of the piroelektric properties, observed in thin films Sn2P2S6 and crystals SbSI0,35Br0,65, are explained.