Effect of Zn2+ on Structural, Magnetic and Dielectric properties of Strontium Hexaferrite

Abstract

A fascinating inspection on Zn2+ substituted Strontium Hexaferrite having nominal composition SrFe12-xZnxO19 (x = 0, 0.2) is carried out by solid state reaction method. X-Ray Diffraction characterization is implemented to analyze the structural features of the manufactured samples. Phase purity and crystallinity of the synthesized compositions are authenticated by rietveld refinement method. The parent in addition with substituted sample belong to P63/mmc space group. Dielectric properties of the prepared sample are exclusively scrutinized from 30 oC to 400 oC in the variation of frequency ranging from 100 Hz to 1 MHz. The variation obtained from frequency dependent plots discovers that dielectric constant along with loss tangent are in well accordance with Maxwell-Wagner and Koop’s phenomenological model. Hysteresis curves obtained from isothermal field dependent magnetization show the ferromagnetic nature of the sample. However, saturation magnetization increases and coercivity decreases with substitution as compared to parent sample.