1999/12/15 by I. V. Stasyuk, Stasyuk, I. V., O. V. Velychko +1
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Solid-state spectroscopy and crystallography #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.cond-mat/9912281
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
arxiv created 1999/12/15 · openalex publication_date 1999/12/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.