Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1235672 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2007 | 4 Pages |
Abstract
A 3D single-wall carbon nanotube can be viewed as a 2D graphite sheet rolled into a 3D cylinder. In the study of dispersion relations of carbon nanotubes, the consistent force parameters for 2D graphite sheets have to be modified to include the curvature effect. The present paper reports a series of calculations of phonon dispersion relations for single-wall carbon armchair, zigzag nanotube in which the curvature effect has been properly treated. The symmetry of crystal vibration mode at the centre of Brillouin zone is analyzed based on our numeric results and the structure symmetry of the nanotubes.
Related Topics
Physical Sciences and Engineering
Chemistry
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Authors
Yufang Wang, Bin Zhang, Qinghua Jin, Baohui Li, Datong Ding, Xuewei Cao,