PHYSICAL PROPERTIES OF Sn<sub>2</sub>P<sub>2</sub>S<sub>6</sub> CRYSTALS ALONG THE p-T DIAGRAM
The Ehrenfest, Clapeyron-Clausius relationships, heat capacity, temperature coefficient of linear expansion along the p-T phase diagram of Sn<sub>2</sub>P<sub>2</sub>S<sub>6</sub> have been analysed. It has been determined that on the diagram, the dependences have anomalies near р<sub>1</sub> = (0.04 ±± 0.03) GPa and р<sub>2</sub> = (0.20 ± 0.03) GPa.