Effect of Cerium (Ce 3+ ) doping on structural, magnetic and dielectric properties of Barium Ferrite (BaFe 12 O 19 )

Ce 3+ -substituted barium ferrite powder with chemical composition BaCe x Fe 12-x O 19 (where x= 0.2 and 0.8) have been synthesized by using sol-gel auto combustion. The X-ray diffractometer (XRD) patterns show that with the increase Ce 3+ content, the lattice constants (a and c) increased. SEM images show the formation of hexagonal platelet like structure. Magnetic measurements show the increase in magnetic saturation (M s ) and remenant magnetization (M r ) to 56.68emu/g and 29.66emu/g respectively. The coercivity (H c ) decreased to 3357.26Oe with increase in compositions from x=0.2 to 0.8. The dielectric behavior of synthesized barium ferrite powders were measured by the vector network analyzer (VNA) for the X-band (8.2–12.4 GHz) frequency range.