Thermodynamics and dielectric anomalies of DMAAS and DMAGaS crystals in the region of phase transitions (Landau theory approach)

• Published in: Condensed Matter Physics
• Date: 2000
• Main Authors: Stasyuk, I.V., Velychko, O.V., Czapla, Z., Czukwinski, R.
• Format: Article
• Language: English
• Published: Інститут фізики конденсованих систем НАН України 2000
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/121041
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Thermodynamics and dielectric anomalies of DMAAS and DMAGaS crystals in the region of phase transitions (Landau theory approach) / I.V. Stasyuk, O.V. Velychko, Z. Czapla, R. Czukwinski // Condensed Matter Physics. — 2000. — Т. 3, № 1(21). — С. 213-222. — Бібліогр.: 18 назв. — англ.

A simple description of thermodynamics of DMAAS and DMAGaS ferroelectric crystals by means of Landau expansion is proposed. Conditions of occurrence of phase transitions are established and their temperatures are obtained. The influence of external hydrostatic pressure on phase transitions is descr...