Infrared active optical vibrations of graphite

R. J. Nemanich, G. Lucovsky, S. A. Solin

Research output: Contribution to journalArticle

214 Scopus citations

Abstract

The infrared refectivity of graphite has been measured for E⊥c and E□c and the frequencies of the "out-of-plane" A2u symmetry mode and the "in-plane" E1u symmetry mode have been determined to be 868 cm-1, respectively. Macroscopic effective charges for each mode have also been calculated, 0.08e for A2u and 0.41e for E1u. The assignment of the A2u frequency has enabled us to evaluate the magnitude of a four-body force that has been used to characterize the graphite lattice modes involving out-of-plane displacements.

Original languageEnglish (US)
Pages (from-to)117-120
Number of pages4
JournalSolid State Communications
Volume23
Issue number2
DOIs
StatePublished - Jul 1977
Externally publishedYes

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ASJC Scopus subject areas

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

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