Abstract
Recent experimental studies are described of the time- and frequency- dependence of conduction processes on humid surfaces of insulating and semi-insulating materials. The two-dimensional conduction by slowly mobile ionic carriers is shown to lead to characteristic “signatures” in time and in frequency, which are associated with nonlinear behavior with respect to the applied voltage and to nonuniform spatial patterns of current flow. It is shown that some of these processes are associated with electrochemical interactions leading to storage of charge and energy in chemical reactions. Novel features of the dependence of the admittance on the geometrical dimensions of the samples are related to proposed mechanisms involving contact and “bulk” surface flow. Experimental results are quoted for humid zeolites, sand, mica paper, glass, and mica single crystals. The relevance of this novel approach to other areas of transport is outlined.
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© 1987 Springer-Verlag Berlin Heidelberg
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Jonscher, A.K. (1987). Surface Transport in Time and Frequency Domains. In: Barrett, T.W., Pohl, H.A. (eds) Energy Transfer Dynamics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-71867-0_12
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DOI: https://doi.org/10.1007/978-3-642-71867-0_12
Publisher Name: Springer, Berlin, Heidelberg
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