Paper Title
Effect of Annealing Temperature on the Structural and Magnetic Properties of Barium Hexaferrite Nanomaterials

Abstract
BaFe12O19 has been synthesized using modified citrate precurssor sol gel method to tailor the magnetic anisotropy and coercivity values for technological applications .Some basic studies have suggested that annealing temperature enhances the magnetic properties significantly.In order to investigate stuctural and magnetic parameters M type hexaferrites were characterized by XRD( X ray difftactometer) and VSM(Vibrating Sample Magnetometer) .It is confirmed by XRD peaks that samples were in pure phase and no impurities were present within the XRD limit.The magnetic hysteresis loops confirms the ferromagnetic nature of nanomaterials.Thecoercivity values were found to increase with the increase in annealing temperature.The saturation magnetization values also increases with the increase in annealing temperaturesuggesting samples to be hard magnetic material. The curie point wasobseved to be shifted to a lower value with the annealing temperaturewhich may be due to particle interactions field in the system to be nonlinear in nature. Keywords - Magnetoplumbilte, Coercivity, Anisotropy, Latticestrain, Crystallite Size.