Role of Coupling Divalent and Tetravalent Metal Ions on the Elastic and Electric Properties of CoFe2O4 Ferrites Prepared by Sol-Gel Method

The effect of Zn-Ti substitution on the infrared spectroscopy, elastic, dielectric, and resistivity properties of CoZnxTixFe2-2xO4 ferrites (where x = 0.0-0.4 in steps of 0.1) is investigated in the paper. All the samples were synthesized by the sol-gel method. Infrared spectroscopy shows two major absorption bands indicating that the prepared samples are in spinel structure. Elastic properties and dielectric properties are measured at room temperature and Zn-Ti is substitution dependent. The dc resistivity is measured using a two-probe method in the temperature range 300 to 650 K. The dielectric constant decreased whereas dc resistivity increased with the Zn-Ti substitution. The elastic constant decreases with increases in Zn-Ti ions.