Hysteretic phenomena and switching effects under phase transitions in external field

Abstract

The field dependence of the order parameter is investigated theoretically, using a statistical approach within the framework of the Ginzburg-Landau model with respect to the ferroelectric phase transition. It is found that, along with the existence of ordinary non-switching hysteresis in not too high fields ε(ε<<εc, where εc is the coercive field), hysteresis of a switching type can be observed at the fields in excess of the coercive one.