Abstract

An acoustic attenuation spectroscopy as a powerful technique is used to study the relaxation processes in phosphate glasses containing Cu+ conductive ions of the system CuI-CuBr-Cu2O-P2O5 with respect to ion transport mechanisms. The acoustic attenuation spectra exhibit several distinctive peaks, corresponding to transport mechanisms originating from the different kinds of sites responsible for ionic hopping. The experimental results of acoustic spectra are then analysed in connection with the frequency response, the activation energy at spectra peaks and the peak intensities using theoretical models and suitable mathematical procedure for the simulations to fit the experimental data. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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