Structural and magnetic properties of doped Ba‐hexaferrite nanoparticles synthesized by co‐precipitation method

The structural and magnetic properties of the Barium hexaferrite doped by Zn, Co and Zr cations have beeninvestigated. BaZnxCoxZr2xFe12‐4xO19 (x= 0.0, 0.1, 0.2, 0.3, 0.4, 0.5) nanoparticles were synthesized by the co‐precipitationmethod in the presence of polyvinyl alcohol (PVA). X‐ray diffraction (XRD), scanning electron microscopy (SEM),vibrating sample magnetometer (VSM) were employed to investigate the desired properties of the prepared samples.From the XRD evaluation it can be seen that the magnetoplumbite structure for all of the samples have been formedand the average crystallite size of nanoparticles is about 44 nm. The SEM results show that the average particle size isbelow 100 nm. The results of VSM analysis show that the saturation magnetization and coercivity decrease by increasingthe percentage of the dopants.

کلیدواژه ها:

Magnetic Properties ، Ferrites ، Nanoparticle ، Co‐precipitation method