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High‐pressure Raman study of fullerite C 60
Author(s) -
Jeon SeungJoon,
Kim Dongho,
Kim Seong Keun,
Jeon Il Cheol
Publication year - 1992
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250230511
Subject(s) - raman spectroscopy , phase transition , chemistry , materials science , phase (matter) , high pressure , solid solution , analytical chemistry (journal) , condensed matter physics , thermodynamics , optics , organic chemistry , physics
Abstract High‐pressure Raman spectra of fullerite, a solid form of C 60 , were measured at pressures up to 4 GPa and room temperature. A change of slope (d v /d P ) of the frequency‐pressure plots for the A g pentagonal pinch mode and the A g breathing mode was observed at 1.3 GPa, where a solid‐solid phase transition might occur. The phase transition was observed to be irreversible. The pressure dependence of the Raman mode frequency and the phase transition are discussed in terms of an orientational ordering transition in fullerite.