The effect of anisotropic intermolecular interactions on the pressure response of polymeric fullerenes

J. Arvanitidis, S. Assimopoulos, K. Papagelis, S. Ves, K. Prassides, Y. Iwasa, G. A. Kourouklis

Research output: Contribution to journalArticlepeer-review

Abstract

High pressure Raman scattering was used to probe the pressure response of the two-dimensional tetragonal and rhombohedral C60 polymers. The phonon frequencies as a function of pressure for the various Raman modes of the polymeric phases show a slope change near ∼4 GPa. As pressure increases above 4 Gpa, the pressure coefficients for the majority of the modes exhibit reversible change to lower values. These changes may be attributed to a possible structural modification of the polymers from their initial state, which is characterized by highly anisotropic intermolecular interactions (strong in-plane covalent bonds and weak out-of-plane van der Waals interactions), to a more isotropic one upon application of the external pressure. This behavior is a common theme of other fullerene materials displaying bonding anisotropy.

Original languageEnglish
Pages (from-to)369-373
Number of pages5
JournalPhysica Status Solidi (B) Basic Research
Volume235
Issue number2
DOIs
Publication statusPublished - 2003 Feb 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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