CORRELATION EFFECTS AT THE FORMATION OF A UNIAXIAL FERROELECTRIC DOMAIN STRUCTURE NEAR THE PHASE TRANSITION
For the first time the evolution of the 180 °-domain structure was studied during its direct observation by means of atomic force microscopy in the vicinity of Curie point T <sub>C</sub> (49 48 °C) of TGS crystal after the rapid cooling of the samples from the paraelectric phase to the ferroelectric one. With using the formalism of the two-dimensional Ising model the correlation functions C(r, t) were calculated for the domain structure under its evolution. They allow to describe the relaxation kinetics of a domain structure at a fixed temperature.