Quasielastic neutron scattering study of proton diffusion in SrCe0.95Yb0.05H0.02O2.985

R. Hempehnann, Ch Karmonik, Th Matzke, M. Cappadonia, U. Stimming, T. Springer, M. A. Adams

Research output: Contribution to journalArticle

100 Scopus citations

Abstract

By means of quasielastic neutron scattering (QENS) we have studied proton diffusion in SrCe0.95Yb0.05H0.02O2.985 on microscopic scales in space and time. The diffusion process consists of a sequence of free diffusion and trapping/escape events. The resulting diffusion coefficient agrees with the diffusion coefficient determined by impedance spectroscopy measurements which were performed on the same sample batch.

Original languageEnglish (US)
Pages (from-to)152-156
Number of pages5
JournalSolid State Ionics
Volume77
Issue numberC
DOIs
StatePublished - Apr 1995

Keywords

  • Proton conductivity
  • Proton diffusion
  • Quasielastic neutron scattering (QENS)
  • SrCeO

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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