Fine particle effects on the magnetic behaviour of Mn–substituted Zn–ferrite nanoparticles

A series of MnxZn1–xFe2O4 (x = 0.5, 0.6, 0.7) nanoferrites have been produced by sol-gel auto combustion method in order to study their structural and magnetic properties. XRD patterns revealed the formation of ferrite phase along with the co-existence of secondary phases. Themodynamical stability of Mn2+ in the spinel structure improved the formation of ferrite phase with the substitution of Mn2+. The saturation magnetization is increased with the increase in Mn2+ ion concentration. Cation redistribution between tetrahedral and octahedral sites seems to be more predominant in the present ferrite systems which are affecting the magnetic properties of the ferrite systems. In the present manuscript the results of structural and magnetic studies are reported.