Dielectric Properties of Vanadium Substituted Lithium Zinc Titanium Ferrites
This paper reports the influence of vanadium substitution on the properties of Li – Zn – Ti ferrite. Samples with compositional formula Li 0.5+t Zn 0.2 Ti 0.2 V t Fe 2.1-2t O 4 (t ranging from 0 to 0.25 in steps of 0.05) were prepared by the conventional sintering technique. XRD analysis confirmed all the samples to be single phase with spinel structure. The lattice constant a density, Curie temperature and Saturation magnetization were measured. The dielectric behaviour was studied as a function of frequency and temperature. The dielectric behaviour showed dispersion with the frequency in the range 100 Hz to 1 MHz. The dielectric constant increases with the increase of temperature for all the samples. The possible mechanisms involved are discussed.