Multiferroic properties of ferromagnetic and ferroelectric coupled Mn-Zn ferrite-BaTiO₃ composite

ABSTRACT

The magneto-dielectric properties can be tuned through ferromagnetic–ferroelectric composites with different Mn_0.9Zn_0.1FeO₄ to BaTiO₃ ratio. The two phenomena can couple and interact with each other when they exist simultaneously due to induced electric polarization in the magnetic order. The composites were synthesized using the nanoparticles of Mn_0.9Zn_0.1Fe₂O₄ and BaTiO₃ with different composition by sintering at 1000°C. The X-ray diffraction confirms the coexistence of ferromagnetic and ferroelectric phases. The surface micrographs show variations in the porosity along with two types of inter grain connectivity. The magnetic and ferroelectric hysteresis loops confirm the magneto-electric coupling presents in the composites.

KEYWORDS:

• Ferroelectric
• composites
• ferromagnetic
• dielectric constant

Acknowledgment

Atiya Farheen would like to thank DST for providing INSPIRE fellowship.