Influence of Ce3+ion doping on structural and magnetic properties of Mn-Co ferrite nanoparticles

Abstract

In the present work, Ce3+ ion doped Mn-Co ferrite nanoparticles with composition Co0.5Mn0.5CexFe2-xO4 (x = 0, 0.025, 0.05, 0.75 and 0.1) have been successfully prepared by employing conventional sol gel route and characterized by various analytical techniques such as XRD, FTIR and VSM. XRD pattern of all the samples shows single phase formation and exhibit all major peaks related to cubic spinel structure that indicates crystalline nature of the particles. The analysis of XRD reveals that lattice parameters increase with increase in cerium concentration which is due to the substitution of Ce ions in Fe sites as ionic radius of Ce3+ is greater than Fe3+. FTIR spectra shows that ν1 and ν2 stretching vibrations are of tetrahedral (FeO4) and octahedral (FeO6) group. The saturation magnetization found to be increases with Ce3+ ion concentration. These morphological and magnetic properties can be exploited for their use as sensing material.