Symmetry and phase transitions in (AsO4)2H2(UO2)2.8H2O

1 January 1977

journal article
research article
Published by Taylor & Francis in Ferroelectrics

Vol. 17 (1) , 469-472
https://doi.org/10.1080/00150197808236769

Abstract

Some reasonable guesses on the point group symmetry of the paraelectric, antiferroelectric and ferroelectric phases of synthetic hydrogen uranospinite have been made, taking as starting points the previously known facts and macroscopic symmetry considerations. The most probable point group for the paraelectric phase is 4/mmm, for the anti-ferroelectric phase II most probable point groups are 1, 1, 2 and 222, for the ferroelectric phase III is 1 and for the forced ferroelectric phase IV, 4mmm, Some mechanisms are proposed to explain the structural features observed.

Keywords

PHASE TRANSITIONS
PROBABLE POINT GROUP
ASO4
2H2
UO2
2.8H2O
PARAELECTRIC
FERROELECTRIC PHASE

This publication has 1 reference indexed in Scilit:

Ferroelectricity and phase transitions INH2(UO2)2(AsO4)2·8H2O
Ferroelectrics, 1975