## ferroelectric (antiferroelectric) transition

https://doi.org/10.1351/goldbook.F02347
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 $$393\ \text{K}$$.
Notes:
1. In an antiferroelectric transition individual dipoles become arranged antiparallel to adjacent dipoles with the result that the net spontaneous @P04712@ is zero.
2. Ferroelectric/antiferroelectric transitions also occur in the @LT06854@. These states are dependent on the alternating nature of dipoles between layers in the @S05714@.
Source:
PAC, 1994, 66, 577. (Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)) on page 582 [Terms] [Paper]