Structural, optical and magnetic elucidation of co-doping of Nd3+ and Pr3+ on lithium nanoferrite and its technological application

Abstract

LiNiCo spinel ferrites were prepared, by doping with rare earth metals Nd and Pr, according to micro-emulsion method. In order to study the effect of Nd and Pr, the crystal structure and magnetic properties of prepared ferrites were scrutinized in detail. The endorsement of single-phase spinel ferrites with the co-occurrence of orthophase was confirmed by XRD and FTIR. The average crystallite size varied with increasing the doped concentration of Nd and Pr, which is in the range from 28 nm to 70 nm. Magnetic properties were analyzed by VSM within range of −10,000 Oe and 10,000 Oe. MS and MR values decreased with the increase in concentration. The value of HC, MR, and MS showed stability for transformer core where electromagnetic interference is reduced. Hence synthesized ferrites LiNi0.35−yCo0.15PryNdxFe2−xO4 are suitable for transformers and induction. Keywords: Li-Pr, Praseodymium, Neodymium, Nanocrystalline ferrites, XRD, Microemulsion, Magnetic properties