Complex impedance and admittance of a silver-conducting glass |
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Authors: | Akira Doi |
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Affiliation: | (1) Department of Materials, Nagoya Institute of Technology, Nagoya 466, Japan |
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Abstract: | From the analysis of complex impedance and admittance data of (Agl)75(Ag4P2O7)25 glass, an Ag+-ion conductor, it was revealed that the sample can be approximated by a seriesRC1 circuit at high temperature, with the capacitorC1 arising from the charge-carrier depleted region near the anode which develops as conduction proceeds, and by a parallelRC2 circuit at low temperature, with the capacitorC2 arising from the saturated value for ionic polarization of, say, the silver-iodine pairs as well as from the relaxation effect of the Ag+ ions for conduction. TheC1 andC2 values were found to be almost temperature-independent at peak frequencies of the distorted semicircles in respective complex planes, with the ratioC1/C2 as large as 104. |
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