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Optical Properties of C 60 Single Crystals at High Pressure

1996; Wiley; Volume: 198; Issue: 1 Linguagem: Inglês

10.1002/pssb.2221980174

1521-3951

К. П. Мелетов, D. Christofilos, S. Ves, G. A. Kourouklis,

Carbon Nanotubes in Composites

Abstract The Raman scattering, luminescence, and absorption spectra of C 60 single crystals at T = 300 K and pressures up to 15 GPa were measured. The pressure dependence of the Raman‐active intramolecular phonons indicates that two phase transitions are induced at pressures of 0.4 and 2.4GPa. The magnitude of the pressure shifts of phonon modes, luminescence and absorption spectra, the values of the Grüneisen parameters, and the deformation potential have been determined.