Investigation of Multiferroic Properties of Spinel Ferrite (ZnFe2O4) and Ferroelectric (Na0.5Bi0.5TiO3) Composites

The composites of ZnFe2O4 and Na0.5Bi0.5TiO3 were synthesized by solid state reaction route. XRD analysis revealed the formation of two phase system successfully. Rietveld analysis of XRD data confirm that composites having cubic and rhombohedral corresponding to ferrite and ferroelectric phase respectively. The FESEM-EDX studies disclose that average grain sizes are ranges from 0.2 to 0.4 μm. The dielectric constant (ɛ’) and tanδ both shows dispersion at low frequencies and both increases with temperature due to increase in thermally activated hopping. Conductivity curves of each sample follow the universal power law. M–H plots suggest the paramagnetic behavior of these composites.