The effect of the morphology on the magnetic properties of barium hexaferrite synthesized by Pechini method

•BaFe12O19 nanocrystalline powders have been prepared by the Pechini method.•The produced samples were heat treated at 900 °C for different hours.•The morphology revealed the presence of different nanostructures.•Plateaus were observed in the hysteresis loops of some samples.•The presence of these plateaus affects the magnetic properties.

Rod, platelet and ellipsoidal nanostructures of BaFe12O19 have been synthesized by the Pechini method followed by heat treatment. The produced samples were heat treated at 900 °C for different hours and characterized by X-ray diffraction, scanning electron microscopy, Mössbauer spectroscopy and vibrating sample magnetometry. The results showed that the particle size and morphology vary with the time of heat treatment. The samples consisting of nanoparticles with different morphologies exhibited plateaus in the magnetic hysteresis loops.