Study of Structural and Magnetic Properties of Co-doped M-Type Sr-Hexaferrite Nanoparticles

Abstract

The aim of this work is to synthesize nanocrystalline SrFe₁₀Co₃O₁₉ with M-type hexaferrites via Sol-gel auto-combustion method. The synthesized powders were consequently subjected to calcination at 900^oC for 6h. The synthesized samples arecharacterized by X-ray diffraction (XRD) to find structural parameters. The XRD results exposed single hexagonal magnetoplumbite phase formation in the heated samples. The morphology of the compound was revealed by Field Emission Gun Scanning Electron Microscopy (FEG-SEM). Vibration Scanning Magnetometer (VSM) provides the magnetic nature of the compound. It shows that the decrease in coercivity was affected by doping of Co²⁺ ions.

Keywords: M-type hexagonal ferrites, SEM, Sol-gel, VSM, XRD.