The ultraviolet (257nm) Raman spectrum of C60 compressed to 30GPa in a Mao-Bell diamond anvil cell with no pressure transmitting medium at ambient temperature indicates the formation of diamond after release of pressure. Previously, more extreme non-hydrostatic compression was reported to be required to form diamond from C60. These results provide confirmation of the transformation of C60 to diamond upon non-hydrostatic compression at room temperature and illustrate the utility of UV Raman spectroscopy for the analysis of carbon phases containing both sp2 and sp3 bonding.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Materials Chemistry