Dielectric properties of BaTiO3–CoFe2O4 nanocomposite thin films

We report on the dielectric characterization of CoFe2O4–BaTiO3 nanocomposites grown by rf sputtering. Dielectric properties have been analyzed for samples grown at different deposition temperatures and with different thicknesses. Impedance spectroscopy data has been analyzed by fitting to an equivalent circuit and different contributions have been identified. Correlations between dielectric properties and deposition temperature and thickness have been established.