Abstract
Results of experimental investigation of relaxational aging processes in Pb(Zr,Ti)O3 based solid solutions after action of DC and AC by electric fields, heating, uniaxial pressure are presented. The said process is long-time and is described by logarithmic function of time. For used in our experiments amplitudes of external excitations process of returning into the initial state is reversible. The criterion of a reversibility is linearly increasing dependence of the speed of a relaxation on amplitude of exciting force. A mechanism of long-time relaxation considering the entrapment of charges, evolved in the annealing process, by vacancies in PZT lattes is suggested.
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