A transition from a ferroelectric to either another ferroelectric, or a paraelectric,
or an antiferroelectric state. Example: The transition of the low-temperature, cubic
paraelectric
BaTiO3
to the high-temperature, tetragonal, ferroelectric form at
.
Notes:
-
In an antiferroelectric transition individual dipoles become arranged antiparallel
to adjacent dipoles with the result that the net spontaneous polarization is zero.
-
Ferroelectric/antiferroelectric transitions also occur in the liquid-crystal state. These states are dependent on the alternating nature of dipoles between layers in
the smectic state.
Source:
PAC, 1994, 66, 577
(Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations
1994))
on page 582
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
