multiferroics
Sign in to saveMultiferroics are defined as materials that exhibit more than one of the primary ferroic properties in the same phase: ferromagnetism – a magnetisation that is switchable by an applied magnetic field ferroelectricity – an electric polarisation that is switchable by an applied electric field ferroelasticity – a deformation that is switchable by an applied stress While ferroelectric, ferroelastics, and ferromagnetics are formally multiferroics, these days the term is usually used to describe the magnetoelectric multiferroics that are simultaneously ferromagnetic and ferroelectric. Sometimes
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Article
29 sectionsContents
- History
- Magnetoelectric materials
- Mechanisms for combining ferroelectricity and magnetism
- Lone-pair-active
- Geometric ferroelectricity
- Charge ordering
- Magnetically-driven ferroelectricity
- f-electron magnetism
- Composites
- Other
- Classification
- Symmetry and coupling
- Applications
- Electric-field control of magnetism
- Radio and high-frequency devices
- Cross-over applications in other areas of physics
- Applications beyond magnetoelectricity
- Dynamics
- Dynamical multiferroicity
- Dynamical processes
- Domains and domain walls
- Properties of multiferroic domains
- Properties of multiferroic domain walls
- Synthesis
- List of materials
- See also
- Reviews on Multiferroics
- Talks and documentaries on multiferroics
- References
Multiferroics are defined as materials that exhibit more than one of the primary ferroic properties in the same phase: ferromagnetism – a magnetisation that is switchable by an applied magnetic field ferroelectricity – an electric polarisation that is switchable by an applied electric field ferroelasticity – a deformation that is switchable by an applied stress While ferroelectric, ferroelastics, and ferromagnetics are formally multiferroics, these days the term is usually used to describe the magnetoelectric multiferroics that are simultaneously ferromagnetic and ferroelectric. Sometimes the definition is expanded to include nonprimary order parameters, such as antiferromagnetism or ferrimagnetism. In addition, other types of primary order, such as ferroic arrangements of magnetoelectric multipoles of which ferrotoroidicity is an example, were proposed.
Besides scientific interest in their physical properties, multiferroics have potential for applications as actuators, switches, magnetic field sensors and new types of electronic memory devices.