| Title: |
Phonons and symmetry properties of (4,4) picotube crystals. |
| Authors: |
Machón, M.1, Reich, S.2, Maultzsch, J.1, Herges, R.3, Thomsen, C.1 |
| Source: |
AIP Conference Proceedings. 2005, Vol. 786 Issue 1, p452-455. 4p. |
| Subject Terms: |
*CRYSTALS, *PHONONS, *NANOTUBES, *POLARIZATION (Nuclear physics), *RAMAN effect, *CARBON |
| Abstract: |
The recently grown picotube crystals are the closest to a monochiral nanotube sample achieved up to now. We present an experimental and theoretical study of the vibrational properties of these crystals, including polarization dependent Raman spectra and ab initio calculations. We assign symmetries to the most intense peaks, A1 in most cases. From ab initio calculations we obtain the underlying atomic displacements. We find, among others, modes related to the high-energy mode and the radial-breathing mode of carbon nanotubes. © 2005 American Institute of Physics [ABSTRACT FROM AUTHOR] |
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| Database: |
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