Time resolved studies near the ferroelectric transition in Triglycine sulphate during the application of high-voltage fields

Abstract

Triglycine sulphate (TGS), (NH2CH2COOH) 3H2SO4), is a well known, hydrogen-bonded, ferroelectric material which undergoes a ferroelectric/paraelectric transition at a Curie temperature, TC, of approximately 49°C. The transition is generally described as second-order, order-disorder, and can also be induced by applying an external electric field to a sample at temperatures just above TC. Recently, (0k0) type Bragg reflections have been studied in real time during the application and removal of high-voltage electric fields, in the vicinity of TC, using a stroboscopic neutron diffraction technique. Static and dynamic responses of (060) Bragg peak intensities as a result of an applied field to T..