Structural, Magnetic, and Dielectric Properties of SrFe₁₂O₁₉-Ba_0.85Ca_0.15Ti_0.9Zr_0.1O₃ Composites

Structural, magnetic, and dielectric properties of \(x\) $x$ SrFe₁₂O₁₉-(1- \(x\) $x$ )Ba_0.85Ca_0.15Ti_0.9Zr_0.1O₃ multiferroic composite prepared by sintering the composite mixture of sol-gel synthesized SrFe₁₂O₁₉ (SrF) and Ba_0.85Ca_0.15Ti_0.9Zr_0.1O₃ (BCTZ) are reported. Structural parameters (lattice parameter, bond length, and lattice strain) of parent phases in their pure and composite forms are correlated to indicate the lattice interaction between the two phases. The magnetic moment per gram of SrF ( \({M}_{SrF}\) $M_{\mathit{SrF}}$ ) in the composite is higher than that in the SrF, related to the changes in the Fe-O-Fe bond angles. The room temperature dielectric response of the composites in the 100 Hz–10 MHz frequency range is modeled by the Cole–Cole relaxation and Jonscher power law equations to mark the different contributions (ferroelectric dipoles, charge carriers).