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

The effect of sintering temperature (T-s) 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 degrees C and 1350 degrees C. Detailed X-ray diffraction (XRD) analysis confirms a perovskite structure with a tetragonal phase except for the samples sintered at 1350 degrees C where coexistence of tetragonal and hexagonal phase is observed. The hexagonal phase of the BTFO sample sintered at 1350 degrees 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 (alpha(ME)) have been measured to confirm the intrinsic magnetoelectric behavior.

Automated summary

The effect of sintering temperature on the properties of BTFO ceramics was investigated, and it was found that the hexagonal phase at 1350℃ degrades the electrical properties. All compositions exhibit ferromagnetic behavior.