antiferroelectric material
antiferroelectric material
An "antiferroelectric material" indicates such a crystal that consists of two sublattices which have anti-parallel dielectric polarizations each other, thus the net polarization of the crystal being 0 (zero). The material is polarized in the direction of an electric field like a paraelectric material when placed in a weak electric field. When the electric field is increased, strong electric polarization is generated in the direction of the electric field like a ferroelectric material. It exhibits a double-hysteresis loop against changes of the electric field.
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