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Raman spectroscopic study of the rare-earth fullerides Eu 6 xSrxC 60
| Content Provider | Semantic Scholar |
|---|---|
| Author | Arvanitidis, J. Christofilos, Dimitris Kourouklis, Gerasimos Paloumpi, A. Papagelis, Konstantinos Ves, Sotirios Iwasa, Yikikazu Prassides, Kosmas |
| Copyright Year | 2011 |
| Abstract | We present Raman spectroscopic studies of the isostructural and isoelectronic Eu6 xSrxC60 (x1⁄4 0, 3, 5, 6) and Ba6C60 compounds. The Raman spectra of the Eu-based fullerides show dramatic changes compared to the pure alkaline-earth systems, including significant broadening, splitting and frequency shifts of the fivefold degenerate Hg intramolecular modes of C60. Moreover, the Ag(2) mode exhibits an even larger downshift and a remarkable broadening. These findings are consistent with distortions of the C60 molecular cages and a considerable electron-phonon coupling strength—strongly enhanced in the Eu containing systems—originating from the strong orbital hybridization between the metal atom and the C60 molecule. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://molecularmaterials.upatras.gr/wp-content/uploads/2014/10/a71.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
