Abstract
The frequency-dependent impedance analysis was carried out on the (CuI) 100 − x -(Ag 4P 2O 7) x (0 ≤ x ≤ 60) mixed system in the range from 1 Hz to 65.5 kHz and over the temperature range 293–393 K. The frequency-dependence of the conductivity of various compositions, explained on the basis of the Jonscher's universal power law ascribed the high frequency dispersion to many body effects arising due to ion-ion interaction within the multiphase system and the low frequency dispersion to the electrode polarization effect. Effectively, the modulus spectra suggested a non-Debye type of relaxation process with a temperature-independent distribution of relaxation times (DRT) and the heterogeneous electrical structure of the present multiphase system.
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