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Activation in solid ionic electrolytes
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DOI：10.1103/PhysRevResearch.6.023322.png)
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Abstract
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Ionic conductivity in solid electrolytes is commonly expected to exhibit Arrhenius dependence on temperature, determined by a well-defined activation energy. Consequently, a standard approach involves calculating this energy using quasi-static methods and using the Arrhenius form to extrapolate the numerical results from one temperature range to another. Despite the ubiquity of this Arrhenius-based modeling, disagreements frequently arise between theory and experiment, and even between different theoretical studies. By considering a tractable minimal model, we elucidate the reason behind the breakdown of the Arrhenius conductivity form. This breakdown is driven by nontrivial phase-space boundaries between conducting and nonconducting regimes, and depends on the kinetic properties of the system.
Keywords:
SUPERIONIC CONDUCTOR
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4.2
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7.6K
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