ferroelectric material
ferroelectric material
A material that has spontaneous electric polarizations, which can be reversed by the application of an external electric field. In a ferroelectric domain, all the polarizations take the same direction. When an external electric field is applied to a ferroelectric material, strong polarizations appear in the direction of the electric field, and residual electric polarizations exist even after the electric field is removed, thus exhibiting a hysteresis loop of polarization against the external field. Certain materials show ferroelectricity below a phase transformation temperature, called the Curie temperature Tc, and are paraelectric above this temperature.
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