Structural and magnetic properties of Ni0.5Zn0.5SmxFe2-xO4 nanoferrite by sol-gel auto-combustion method

Samarium ion substituted magnesium of Ni0.5Zn0.5SmxFe2-xO4 spinel ferrite powders have been prepared by a sol-gel auto-combustion method. XRD results indicate that the production of a single cubic phase of ferrites. Some particles are agglomerated due to the presence of magnetic interactions among particles. The Mssbauer spectra of Ni0.5Zn0.5SmxFe2-xO4 nanocrystalline at room temperature show that the magnetic interaction and interface atomic state were influenced strongly by Sm3+ ratio, and the saturation magnetization of a spinel ferrite largely also depends on Sm3+ ratio and particle size, while the coercive field depends on Sm3+ ratio, particle size and their shapes. The SEM micrographs indicate that the Nanocrystalline Particles' specific features and characteristics.