“On the influence of different parameters on the phase transition temperatures and ferroelectric domain structure in H(UO₂)(AsO₄). 4H₂O”

Abstract

Thermal bysteresis of the ferroelectric-ferroelastic transition has been observed in virgin and heat-treated samples by means of differential scanning calorimetry, X-ray diffraction of oriented samples and electron microscopy observation of replicas of cleavage surfaces. These replicas provided for the first time direct evidence of the ferroelectric domain structure. In the ferroelastic-paraelastic transition, transition temperature changes, under different atmospheric surroundings, have been observed.