Molecular dynamics of C60 in superconducting Na2CsC60

Luigi Cristofolini, Konstantinos Vavekis, Kosmas Prassides, A. José Dianoux, Mayumi Kosaka, Ichiro Hirosawa, Katsumi Tanigaki

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

We have measured the low-energy inelastic neutron scattering spectra of superconducting Na2CsC60 in the temperature range 100-350 K. Well-defined librational peaks are observed at 2.7(1) meV; their position and width are temperature independent. They survive well above the order-disorder transition at 299 K. A quasielastic feature with a width 1.03(6) meV at an average scattering vector of 1.09 Å-1 is observed at 350 K, arising from diffusive motion of the C3-60 ions. Evidence is found for influence of the Na+ ions on the rotational motion of the C3-60 ions.

Original languageEnglish
Pages (from-to)41-45
Number of pages5
JournalPhysica B: Condensed Matter
Volume226
Issue number1-3
DOIs
Publication statusPublished - 1996 Aug 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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