Raman modes of the two-dimensional tetragonal polymeric phase of C60 under high pressure

J. Arvanitidis, K. P. Meletov, K. Papagelis, S. Ves, G. A. Kourouklis, A. Soldatov, K. Prassides

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9 Citations (Scopus)

Abstract

The material stability of the two-dimensional (2D) tetragonal C60 polymer and the phonon spectrum at a high hydrostatic pressure, up to 12 GPa, was studied using Raman spectroscopy in the frequency range of 100-2000 cm-1. Modes exhibiting increasing intensities with an increase in pressure were observed in the spectrum for pressures above ≅1.4 GPa. The observed pressure induced effects were due to the anisotropy in inermolecular bonding of the polymer. Molecular cage deformations accounted for the new peaks with changed intensities while modification of the material to a more isotropic phase with respect to its elastic properties accounted for the changes of pressure coefficients of the several modes.

Original languageEnglish
Pages (from-to)9099-9104
Number of pages6
JournalJournal of Chemical Physics
Volume114
Issue number20
DOIs
Publication statusPublished - 2001 May 22

ASJC Scopus subject areas

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

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