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Optical Properties of C 60 Single Crystals at High Pressure
Author(s) -
Meletov K. P.,
Christofilos D.,
Ves S.,
Kourouklis G. A.
Publication year - 1996
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221980174
Subject(s) - raman spectroscopy , luminescence , raman scattering , phonon , materials science , absorption (acoustics) , intramolecular force , absorption spectroscopy , phase (matter) , spectral line , analytical chemistry (journal) , molecular physics , chemistry , condensed matter physics , optics , optoelectronics , physics , stereochemistry , organic chemistry , chromatography , astronomy , composite material
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.