Dielectric Study of Critical Behavior of Ferroelectric Triglycine Sulfate by a Digital Technique

抄録

A digital technique especially suitable for detecting minute changes in dielectric constant has been applied to the study of triglycine sulfate. The change of dielectric constant under external electric field has been studied at various temperatures in the vicinity of the Curie point. One of the gap exponent defined by Fisher et al. is determined as 1.3\lesssimΔ₄\lesssim1.5 in the paraelectric phase of triglycine sulfate.