Effect of Gamma Irradiation on the Structural and Magnetic Properties of Cerium 1 mol%–Doped Cobalt–Nickel Ferrites

In submitted manuscript, nanocrystalline particles of larger ionic radii rare earth Ce 0.01 3+ substituted Co 0.5 Ni 0.5 Fe 2 O 4 were synthesized by fuel synthesis technique and were irradiated to 50 kGy and 100 kGy gamma radiation from a 60 Co-radioactive source. The realism of monophase was confirmed by XRD. The variation of crystallite size with respect the individual peak was noted. The unperturbed lattice parameter shows non-deterioration of structure upon irradiation. A measurable decrease in the magnetic parameters was noted from VSM and were explained using two sub lattice model. Room temperature and low-temperature Mössbauer spectroscopic analysis confirm that there is no much migration of Fe 3+ ions from B-site to the A-site upon gamma irradiation. The synthesized nanoparticles have more stability towards its structure and not to undergoing radiation damage. This material is suitable one for the electronic devices performing near high-dose radiations.