Boutahir, M. and Rahmani, A. and Chadli, H. and Rahmani, A. (2016) Mechanical coupled vibrations in an individual double-walled carbon nanotube. EPJ Applied Physics, 74 (2).

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In this paper we calculate the Raman spectra of different double-walled carbon nanotubes (DWCNTs) by using the spectral moments method. Using a convenient Lennard-Jones expression of the van der Waals intermolecular interaction between the inner and outer tubes, the optimized structures of DWCNT are derived. We found that the C-C bond length in DWCNT is depending on the metallic (M) or semiconducting (Sc) character of the inner and outer nanotubes. We show that the radial breathing-like modes (RBLM) of DWCNT are characterized by concerted inner and outer wall motions. Comparison with Raman spectra measurements is given. © EDP Sciences, 2016.

Item Type: Article
Uncontrolled Keywords: Bond length; Carbon; Carbon nanotubes; Nanotubes; Raman scattering; Scandium; Van der Waals forces; Vibrations (mechanical); Yarn, Coupled vibrations; Double-walled carbon nanotubes; Intermolecular interactions; Lennard Jones; Optimized structures; Radial breathing; Spectra measurements; Spectral moments, Multiwalled carbon nanotubes (MWCN)
Subjects: Materials Science
Divisions: SCIENTIFIC PRODUCTION > Materials Science
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:48

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