Heat capacity of the ferroelectric betaine arsenate
- 1 April 1984
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 54 (1) , 293-296
- https://doi.org/10.1080/00150198408215873
Abstract
The heat capacity of a betaine arsenate single crystal was measured near Tc2 by an automatic adiabatic calorimeter. A typical second order phase transition γ-anomaly is observed. The transition entropy is Δ = 0.65 J/mol/K. the heat capacity jump at TC2 Δ = 21 J/mol/K. The relation between Δ(T) and Ps (T) given by the Landau theory is roughly satisfied.Keywords
This publication has 1 reference indexed in Scilit:
- Ferroelasticity and ferroelectricity in betaine arsenateFerroelectrics Letters Section, 1982