Abstract
In this study, zirconium (Zr4+) ion substitution on M-type barium hexaferrite (BaZrxFe12-xO19 with x=1) was synthesized via Sol-gel auto combustion technique in the presence of citric acid as fuel. The crystal structure, morphology and magnetic properties of the samples were systematically investigated using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), and vibrating sample magnetometer (VSM). The XRD results confirmed the single phase magnetoplumbite type hexagonal structure. Scherrer and Williamson-Hall (W-H) method is applied to determine crystallite size and strain present in the sample. Three vibrational modes were observed in FT-IR spectra which confirm that formation of zirconium substituted barium hexaferrite. Raman spectra showed eight strong and sharp modes, identifies the barium hexaferrite phase. The transmission electron microscopy (TEM) observations revealed that the as-prepared nanoparticles have rods-like shape. The magnetic measurements of the calcined sample were carried out at room temperature with vibrating sample magnetometer.
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