Reexamination of electrodiffusion time scales

I. Rubinstein, B. Zaltzman, A. Futerman, V. Gitis, V. Nikonenko

Research output: Contribution to journalArticlepeer-review

46 Scopus citations


The characteristic time scales in ac ionic conduction near equilibrium are reassessed via consideration of a selection of one-dimensional model problems. It is observed that, in addition to the two basic electrodiffusion time scales, those of diffusion relaxation in the macroscopic- and Debye-scale domains, T and tD (the latter identical with the bulk charge relaxation time), some intermediate time scales are present in each system. It is concluded that, due to insensitivity of the electric double layers to harmonic voltage disturbances, the short-time response on the tD scale is determined by the quasielectroneutral bulk.

Original languageEnglish
Article number021506
JournalPhysical Review E
Issue number2
StatePublished - 2 Feb 2009

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics


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