Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10610531 | Carbon | 2005 | 8 Pages |
Abstract
X-ray diffraction and Raman spectroscopy have been used to characterize the structures obtained when C60 single crystals are treated at 2Â GPa-700Â K. Two different experimental procedures have been applied: the temperature is raised before the pressure is applied, or the opposite. The “heating-then-pressing” path leads to the tetragonal polymer structure (P42/mmc) together with a minor fraction of rhombohedral structure, which confirms previous results. In contrast, the “pressing-then-heating” path leads to a different state presenting similarities with both the rhombohedral and the disordered dimer structures. The results are discussed in light of the orientational and dynamical aspects of the C60 polymerization.
Related Topics
Physical Sciences and Engineering
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Energy (General)
Authors
R. Moret, T. WÃ¥gberg, B. Sundqvist,