Studies of Nanosized Zinc Substituted Lithium Ferrites Prepared By Citrate Precursor Method

Nanocrystalline Lithium Ferrites Substituted with Zinc having the compositional formula Li 0.5-0.5x Zn x Fe 2.5-0.5x O 4 where 0 ≤ x ≤ 0.8 in steps of 0.2 were synthesized by the Citrate precursor Method also known as Sol gel auto combustion method [1-3]. This method is a modified form of sol gel combined with combustion technique. The ferrites sample prepared by this method shows spinel phase as investigated by X-ray diffraction technique. The lattice parameter increases linearly with Zn content, which is attributed to the fact that lattice expand slightly to accommodate the increased no. of Zn2+ ions of relatively larger radius [4]. The grain size has been calculated using Debye Scherrer formula and its variation with composition studied. Electrical propertie