ferroelectricity
Sign in to saveIn 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.
Article
9 sectionsContents
- Polarization
- Applications
- Materials
- Theory
- Sliding ferroelectricity
- See also
- References
- Further reading
- External links
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.
All ferroelectric materials are also piezoelectric (they generate an electric charge when mechanically stressed) and pyroelectric (they generate a charge when heated or cooled). Their distinctive feature is that the natural electrical polarization is reversible.