Thermal Expansion and Phase Transformation Observation in Cs2BX4 Crystals

• Published in: Ferroelectrics Vol. 337; no. 1; pp. 219 - 232
• Main Authors: Martynyuk-Lototska, I. Y., Trach, I. B., Girnyk, I. S., Vlokh, R. O., Vlokh, O. G.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: London Taylor & Francis Group 01-01-2006; Taylor and Francis
• Subjects: CdBr; Condensed matter: structure, mechanical and thermal properties; crystals; Equations of state, phase equilibria, and phase transitions; Exact sciences and technology; HgBr; HgCl; phase transitions; Physics; Solid-solid transitions; Specific phase transitions; Ferroelastic transformation; Phase diagrams; Phase transformations; phase transitions; Cesium chlorides; Cs2CdBr4; Mercury chlorides; Thermal expansion; Cs2HgBr4 crystals; Cesium bromides; Domain structure; Cadmium bromides; Optical rotation; Cs2HgCl4
• ISSN: 0015-0193; 1563-5112
• DOI: 10.1080/00150190600717018

The results of studies for thermal expansion and optical indicatrix rotation at the ferroelastic phase transition, along with the domain structure observations for Cs
2
HgCl
4
, Cs
2
HgBr
4
and Cs
2
CdBr
4
crystals are presented. On the basis of the literature data and the results of our studies for the heterophase structure, domain structure and thermal expansion, the phase diagram common for Cs
2
HgCl
4
, Cs
2
HgBr
4
and Cs
2
CdBr
4
crystals is proposed.