Site trapping and commensurability effects in framework solid electrolytes

S. H. Jacobson, Mark A Ratner

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We have performed Langevin dynamics calculations on a one-dimensional model for framework materials, focusing on the conductivity of interacting mobile ions in the presence of Coulombic traps. We observe several interesting phenomena, arising from competition among the three potentials (lattice, ion-ion, ion-trap). Findings of interest include: 1. Generally, the compensator will indeed trap a sufficient number of mobile ions to balance its charge. These ions can exchange, but they are quite well localized by the trap. 2. For incommensurate mobile-ion concentrations, the overall DC conductivity is decreased. 3. For commensurate concentrations, the DC conductivity can actually increase, as the trapping renders the remaining mobile-ion array effectively incommensurate.

Original languageEnglish
Pages (from-to)1325-1332
Number of pages8
JournalSolid State Ionics
Volume9-10
Issue numberPART 2
DOIs
Publication statusPublished - 1983

ASJC Scopus subject areas

  • Electrochemistry
  • Physical and Theoretical Chemistry
  • Energy Engineering and Power Technology
  • Materials Chemistry
  • Condensed Matter Physics

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