Abstract:
Magnetoelectric (ME) multiferroics materials that simultaneously possess more than one
spontaneous ferroic ordering and coupling between those order parameters. The coupling
between the electric and magnetic order parameters leads to fundamental properties such as
magneto-electric and/or magneto-dielectric phenomena. An induced electric polarization in
the material on subjecting it to the magnetic field or vice versa is called as
magnetoelectric(ME) effect and a change in capacitance/dielectric permittivity upon
subjecting to a magnetic field is known as the magneto-dielectric effect. ME effect is
observed rarely in naturally existing material systems and if any present, the magnitude of
coupling is relatively weak and/or observed at low temperatures, hence limiting practical
applications. Composites comprising of piezoelectric and magnetostrictive phases were
utilized to overcome the hindrances in single-phase magnetoelectric material. ME coupling in
these composites arises via strain-mediated interaction.
