Single crystal polarized Raman spectra of the solid electrolyte Cu2HgI4; attempt frequencies for ion motion in Ag2HgI4

J. I. McOmber, D. F. Shriver, Mark A Ratner

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The polarized Raman scattering from small single crystals of Cu2HgI4 provided assignments for the more prominent Raman features to specific irreducible representations. The E symmetry assignment, mass dependence, and pressure dependence of the 36 cm-1 band in Cu2HgI4 and 24 cm-1 band in Ag2HgI4 indicate that these features approximate the attempt frequency for ion hopping. The unusually high pre-exponential factor in the Arrhenius expression for ion hopping is discussed in light of the observed attempt frequency; we conclude that despite the high activation energy the conduction mechanism is similar to other heavy-metal solid electrolytes.

Original languageEnglish
Pages (from-to)895-901
Number of pages7
JournalJournal of Physics and Chemistry of Solids
Volume43
Issue number9
DOIs
Publication statusPublished - 1982

Fingerprint

ion motion
Solid electrolytes
solid electrolytes
Raman scattering
Single crystals
Ions
Raman spectra
single crystals
heavy metals
Heavy Metals
pressure dependence
Heavy metals
ions
Activation energy
activation energy
conduction
symmetry

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Single crystal polarized Raman spectra of the solid electrolyte Cu2HgI4; attempt frequencies for ion motion in Ag2HgI4. / McOmber, J. I.; Shriver, D. F.; Ratner, Mark A.

In: Journal of Physics and Chemistry of Solids, Vol. 43, No. 9, 1982, p. 895-901.

Research output: Contribution to journalArticle

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