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how to calculate current density in ionic crystal under high electrical field
Posted 16 nov 2020, 04:45 GMT-5 Electromagnetics, Electrochemistry, Equation-Based Modeling 0 Replies
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Hi everyone, I have trouble calculating the current density (j) in ionic crystal caused by ion migration under high electric field (E), in which current density should be exponential with electrical field (j=Aexp(BE/kT)). However, in COMSOL, it is normal to calculate current density with conductivity sigma (j=sigma * E). I wonder whether there is suitable module to calculate current density that is exponential to electric field, rather than linear to electric field. Can anyone give me any tips? It would be greatly appreciated. Thanks in advance!
Hello Jingxian Li
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