Abstract
This paper deals with a detailed analysis of impedance ( z) and conductivity (σ) spectra, as well as modulus ( M) diagrams of the mixed system CuIAg 2MoO 4, exhibiting Ag + ionic conductivity over the temperature range 290–400 K and in the frequency range, 65.5 kHz-1 Hz. The observed conductivity spectra could be attributed to Jonscher's power law dependence. Impedance spectra have enabled the separation of bulk properties from electrode effects. The modulus spectra have exhibited a long tail pattern in the low frequency region and a tendency to peak at higher frequencies thereby suppressing the electrode effects at low frequencies in the modulus formalism. A comparative study of modulus spectra and the impedance patterns has indicated the non-Debye type of frequency dispersion in the mixed system.
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