Effect of Co-Ti Substitution on Magnetic Properties of Nanocrystalline BaFe12O19

Abstract

<p>The synthesis of nanocrystalline BaFe_12-2xCo_xTi_xO₁₉ with variations of x (x = 0, 1, 2, and 3) have been investigated. The formation of polycrystalline samples that the cationic of Co²⁺ and Ti⁴⁺ in Co-Ti substituted Fe in BaFe₁₂O₁₉ ferrites structure were prepared by solid state reaction method. The crystal structure, microstructure, and magnetic properties were characterized using powder X-ray diffraction, scanning electron microscope (SEM) and permagraph meter, respectively. The results show that the nanocrystalline BaFe_12-2xCo_xTi_xO₁₉ has single phase with polycrystalline structure, the grain size decrease by doping, the coercivity (Hc) and saturation magnetization (Ms) decrease with increasing Co-Ti substitutions. </p>