Multiferroics
In order to characterize as a ferroelectric and magnetic via single measurement, we probe type-II multiferroicity in polar magnet with the determination of profile of magnetodielectricity and pyroelectricity based electrical polarization against the magnetic field and temperature. Magnetodielectric are one of the strongest approached to investigate type of mechanism.
Figure 1: Magnetodielectric response of type-2 multiferroics. The divergence of dielectric constant at magnetic transition temperature observed when ferroelectricity are intimately related to each other. The generation of pyroelectric current after poling the specimen well below its ferroelectric transition temperature.
Figure 2: This is a demonstration of profile of pyroelectric current- occurs due to the relative ordering-disordering- that involves physical movement of dipoles-results as a response of thermal oscillation of dipoles.
Figure 3: Non-decaying Pyroelectric Current Generation against temperature.
Figure 4. Hystersis in dielectric constant-magnetic field and abrupt change in dielectric constant is signature of magnetoelasticity of functional material.