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Abstract
A hysteresis loop was measured in a round-plate sample of triglycine sulfate (TGS) ferroelectric using two measurement and one side electrode. Due to a non-zero electric potential, V
s, applied to the side electrode the hysteresis loop gradually decayed with time. It was shown that the higher the V
s value, the shorter time t
d is required for the hysteresis loop to disappear. The value of turned out to be proportional to the electric potential V
s, generating a transverse field at a constant temperature. Within the limits of experimental error, the inverse of the slope of the dependence
versus V
s is proportional to the difference T
C − T. A relationship between the temperature T, the spontaneous polarisation P
± (positive or negative) and the freezing parameter f has been proposed. The parameter f describes the influence of the transverse electric field. Arguments in favour of considering the transverse field effect as occurring due to free electric charges flowing into the crystal are given. A method is proposed by which the parameters of the hysteresis loop can be easily adjusted by an electric potential of an additional side electrode.