Ferroelectricity

Ferroelectricity is a characteristic of certain materials that have a spontaneous electric polarization that can be reversed by the application of an external electric field.

Ferroelectricity are сrystalline dielectrics having a certain temperature range, the very arbitrary polarization strongly dependent on external influences. By cegneto electricians include barium titanate, Rochelle salt, and others. Ferroelectric electrician has a high dielectric constant, which is related to their domain structure.

Sources:

Werner Känzig (1957). "Ferroelectrics and Antiferroelectrics". In Frederick Seitz; T. P. Das; David Turnbull; E. L. Hahn (eds.). Solid State Physics. Vol. 4. Academic Press. p.5

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