Frequency, temperature and composition dependence of dielectric properties of Nd³⁺ substituted Cu-Zn ferrites

Abstract

The frequency, temperature and composition dependence of ac resistivity ρac, dielectric constant ε′ and dielectric loss ε″ of Cu0.5Zn0.5NdxFe2-xO4 ferrites (where x= 0.0, 0.02, 0.04, 0.06, 0.08 and 0.1) have been studied at low frequency range. For all samples, ρac, ε′ and ε″ are found to decrease with increasing the frequency. The composition dependence of ρac, ε′ and ε″ shows that, generally, ρac increases while both ε′ and ε″ decrease with increasing x. The obtained results are satisfactorily explained using the non uniform model of Koops.