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Abstract
Remanent polarization of Rochelle salt has been measured as a function of time to reveal the influence of the prolonged application of the DC electric field that is not parallel to the ferroelectric axis. It is confirmed that value of the remanent polarization decreases with time under the transverse electric field. Stronger the transverse electric field causes faster reduction of the remanent polarization. The mean relaxation time considerably depends on temperature. Observation of the hysteresis loop for a long time and annealing of the sample rejuvenate the influenced remanent polarization.