Vibrational modes of carbon nanotubes and nanoropes
- 1 September 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 60 (9), 6535-6540
- https://doi.org/10.1103/physrevb.60.6535
Abstract
The vibrational modes of carbon nanotubes and nanoropes are studied. The Raman and infrared active modes are determined for armchair, zigzag, and chiral nanotubes. High-energy Raman and infrared modes exhibit distinct characteristic patterns for armchair, zigzag, and chiral tubes. In the nanorope the intertube interactions shifts the energy of certain vibrational modes dramatically. This has implications when using the vibrational spectra to identify tubes. In the nanorope we find Raman modes exhibit shifts under a change in pressure which differ from the corresponding shifts found in graphite.Keywords
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