| Autor: |
A. Bharathi, C. S. Sundar, Y. Hariharan, D. V. S. Muthu, N. Chandrabhas, A. K. Sood, C. N. R. Rao |
| Rok vydání: |
1994 |
| Předmět: |
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| Zdroj: |
Physical Review Letters. 73:3411-3414 |
| ISSN: |
0031-9007 |
| DOI: |
10.1103/physrevlett.73.3411 |
| Popis: |
We have studied single crystals of C70 by Raman scattering and photoluminescence in the pressure range from 0 to 3 1.1 GPa. The Raman spectrum at 3 1.1 GPa shows only a broadband similar to that of the amorphous carbon without any trace of the Raman lines of CT0. After releasing the pressure from 3 1.1 GPa, the Raman and the photoluminescence spectra of the recovered sample are that of the starting C70 crystal. These results indicate that the C70 molecules are stable up to 3 1.1 GPa and the amorphous carbon high pressure phase is reversible, in sharp contrast to the results on solid Cm. A qualitative explanation is suggested in terms of intermolecular versus intramolecular interactions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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