Microscopic model of phase transition in the crystals of DMAAlS and DMAGaS type
Abstract
Description
The four-state model is proposed for description of phase transition in ferroelectric crystals of DMAGaS and DMAAlS type. Thermodynamical functions of the model are obtained in the mean field approximation. The phase transition between paraelectric and ferroelectric phases is investigated. It is established that order of the phase transitions depends on relations between model parameters.
12 pages, LaTeX2e, 7 figures in EPS format; poster presented at First Ukrainian School of Ferroelectricity, August 26-28, 1999, Lviv, Ukraine; submitted to J. Phys. Studies
12 pages, LaTeX2e, 7 figures in EPS format; poster presented at First Ukrainian School of Ferroelectricity, August 26-28, 1999, Lviv, Ukraine; submitted to J. Phys. Studies