Characterization of Rare earth material Samarium substituted Magnesium Nano Ferrites synthesized by Citrate-Gel Auto Combustion method

Abstract

A series of Samarium substituted Magnesium ferrites (Mg Sm x Fe 2-x O 4 with x = 0.000, 0.025, 0.050, 0.075, 0.1) was synthesized by the Citrate–Gel auto combustion method at low temperature. Synthesized powders were sintered at 500 0 C for 4 hours in an air and were characterized by XRD, SEM and EDS. XRD analysis reveals that the samples are single phase with crystallized sizes in the 51 nm to 62 nm region increases. In lattice parameter with doping concentration suggests the expansion in unit cell with Sm +3 doping. The values of lattice parameter (a) decreased and x-ray density (dx) was increased with the increasing of Sm substitution. Scanning Electron Microscopic (SEM) studies revealed nano crystal and nature of the samples. An elemental composition of the sample was studied by Energy Dispersive Spectroscopy (EDS). The observed results can be explained on the basis of composition and crystal size.