|
- Ferroelectricity - Wikipedia
In physics and materials science, ferroelectricity is the property of certain materials that exhibit a spontaneous electric polarization —an internal electric alignment that arises naturally without an external source This polarization can be reversed when an external electric field is applied [1][2]
- Ferroelectric Materials: What Are They? (With Examples)
Ferroelectric materials exhibit ferroelectricity, defined as the ability to maintain a spontaneous electric polarization that can be reversed with an opposite external electric field Ferroelectricity was first identified in Rochelle salt by Valasek in 1921
- Ferroelectric materials toward next-generation . . . - Science
New high-performance ferroelectric materials have emerged, such as ferroelectric ceramics with a piezoelectric coefficient >2000 pC N −1 (4 to 10 times higher than currently used materials) and ferroelectric crystals simultaneously possessing high piezoelectricity and high light transparency
- Ferroelectricity - Engineering LibreTexts
Ferroelectricity is a property observed in certain materials characterized by the presence of a spontaneous electric polarization without the presence of an electric field, much like how ferromagnetism is characterized by a spontaneous, permanent magnetic field
- Ferroelectricity | Piezoelectricity, Pyroelectricity, Hysteresis . . .
Ferroelectric materials—for example, barium titanate (BaTiO 3) and Rochelle salt—are composed of crystals in which the structural units are tiny electric dipoles; that is, in each unit the centres of positive charge and of negative charge are slightly separated
- Ferroelectrics | Penn State Department of Materials Science and Engineering
Ferroelectric materials possess a spontaneous electric polarization that can be reoriented between crystallographically – defined states by the application of an external electric field There are some 250+ materials that possess ferroelectric properties
- Ferroelectricity - an overview | ScienceDirect Topics
Ferroelectricity is exhibited by materials with spontaneous polarization and is reversible through the application of an electric field (Lines and Glass, 1977; Mitsui et al , 1976)
- Ferroelectricity Explained | Tech | Matsusada Precision
When the dipole orientations align and spontaneous polarization occurs, the material becomes ferroelectric Order-disorder ferroelectrics have zero polarization on a macroscopic scale, because at high temperatures the electric dipoles are randomly oriented by thermal energy
|
|
|