Preferred Label : ferroelectric (antiferroelectric) transition;
IUPAC definition : 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 BaTiO sub 3 /sub to the high-temperature, tetragonal, ferroelectric
form at 393 K.;
Scope note : 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.; in an antiferroelectric transition individual dipoles become arranged antiparallel
to adjacent dipoles with the result that the net spontaneous polarization is zero.;
Origin ID : F02347;
See also
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 BaTiO sub 3 /sub to the high-temperature, tetragonal, ferroelectric
form at 393 K.
