The relationship between hopping and coherent motion in dynamically disordered systems

Stephen D. Druger*, Mark A. Ratner

*Corresponding author for this work

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Diverse transport processes are described within a framework previously developed only for systems undergoing random host reorganization concurrent with carrier hopping. The rule D(ω)=D0(ω-iλ) relating frequency-dependent diffusion with and without random reorganization at rate λ is shown equivalent to a condition on the carrier velocity autocorrelation function that often applies, for physically different reasons, to both coherent and hopping transport. Formulation in terms of mean-square carrier displacement leads to rules for combining renewal (e.g. scattering and host reorganization) processes, and predicts how renewal affects frequency-dependent transport in physically different cases.

Original languageEnglish (US)
Pages (from-to)434-438
Number of pages5
JournalChemical Physics Letters
Volume151
Issue number4-5
DOIs
StatePublished - Oct 21 1988

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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