Abstract
Abstract The dc-electric field dependence of the dielectric properties (complex permittivity and relaxation time) of the antiferroelectric betaine phosphate was investigated under various frequencies. The strong dielectric dispersion along the b-axis associated with the field-enforced ferroelectric phase transition was observed. The slowing-down of the relaxation time toward a critical electric field Ecr, which induces the forced transition to the ferroelectric phase, was observed. The frequency dependence of the complex relative permittivity obeys the Cole-Cole are law. The relaxation time is of the order of 10−5s near Ecr.
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