(1) Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 119333, Russia;(2) Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-17 Poznan, Poland
Abstract:
The characteristics of the changes in the domain structure of Cs3H(SeO4)2 crystals have been studied in a wide temperature range. An anomalous change in the domain structure in the temperature range near the superprotonic phase transition was found. The anomalies in this temperature range were also found by differential scanning calorimetry. The characteristics of the changes in the domain structure in different phases are compared.