Abstract
The existence of a dimensional factor that provides the correctness of the «uniform effective field»F effconcept and uniform electrostatic Gauss fieldF G approximation in the structure-dynamic approach of nanoionics was earlier established in computer experiments on nanostructures with ionic hopping transport. In the present work, the physical sense of this dimensional factor is revealed. It is defined by the smallness of an average distance r i between mobile ions in solid electrolytes—superionic conductors. The dimensional r i-factor predetermines a correctness of simple F eff ≈ F G approximation on nanoscale. This finding is formulated as the reciprocity theorem for excess point charges and field additives to heights of potential barriers in the model nanostructures being under weak external electric influence. The reciprocity theorem can be applied to calculate the kinetics and energetics of ionic transport in nanoionic devices.
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Despotuli, A., Andreeva, A. Dimensional factor and reciprocity theorem in structure-dynamic approach of nanoionics. Ionics 24, 237–241 (2018). https://doi.org/10.1007/s11581-017-2168-9
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DOI: https://doi.org/10.1007/s11581-017-2168-9