The phase transitions character and microscopic models for Sn₂P₂S(Se)₆ ferroelectrics

• Published in: Condensed Matter Physics
• Date: 2002
• Main Authors: Vysochanskii, Yu., Drobnich, A.
• Format: Article
• Language: English
• Published: Інститут фізики конденсованих систем НАН України 2002
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/120678
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: The phase transitions character and microscopic models for Sn₂P₂S(Se)₆ ferroelectrics / Yu. Vysochanskii, A. Drobnich // Condensed Matter Physics. — 2002. — Т. 5, № 4(32). — С. 669-683. — Бібліогр.: 26 назв. — англ.

The paper considers an example of concrete objects, i.e. ferroelectrics of Sn₂P₂S₆ family, for which, according to general estimations, a correlation between the shape of a phase diagram (the presence of a Lifshitz point and of a tricritical point) and a crossover “displacive to order/disorder” i...