Influence of sintering temperature on structural, electrical, and magnetoelectric properties of multiferroic Fe-substituted BaTiO3 ceramics.

The effect of sintering temperature (Ts) on the phase formation, structural, multiferroic, and magnetoelectric properties of BaTi0.975Fe0.025O3 (BTFO) ceramics has been investigated. The samples have been prepared via a solid-state reaction route and sintered at various temperatures between 1200 °C and 1350 °C. Detailed X-ray diffraction (XRD) analysis confirms a perovskite structure with a tetragonal phase except for the samples sintered at 1350 °C where coexistence of tetragonal and hexagonal phase is observed. The hexagonal phase of the BTFO sample sintered at 1350 °C degrades the electrical properties. All compositions exhibit ferromagnetic behavior, as seen from the M-H curves. Magnetodielectric coefficient (MD) and Magnetoelectric (ME) voltage coefficient α ME have been measured to confirm the intrinsic magnetoelectric behavior. [ABSTRACT FROM AUTHOR]