Evolution with temperature of the magnetic anisotropy of Ba ferrite particles

This work investigates the evolution of the magnetic anisotropy of Ba ferrite particles when cooled from room to low temperatures, studying both pure and Co/Ti-doped particles for magnetic recording media. Results show the magnetocrystalline anisotropy increases when the temperature decreases. The magnetic anisotropy feature of Co/Ti-doped Ba ferrite particles for magnetic recording is remarkably different at low with respect to room temperature, with appearance of multiple anisotropy axes.