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Discontinuous Tangential Stress in Double Wall Carbon Nanotubes

Puech, Pascal and Hubel, Hannes and Dunstan, David J. and Bacsa, Revathi and Laurent, Christophe and Bacsa, Wolfgang Discontinuous Tangential Stress in Double Wall Carbon Nanotubes. (2004) Physical Review Letters, 93 (9). ISSN 0031-9007

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Official URL: http://dx.doi.org/10.1103/PhysRevLett.93.095506


We have examined the stability of double wall carbon nanotubes under hydrostatic pressures up to 10 GPa. The tangential optical phonon mode observed by inelastic light scattering is sensitive to the inplane stress and splits into a contribution associated with the external and internal tube. While the pressure coefficient from the external tube is the same as in single wall carbon nanotubes, the pressure coefficient from the internal tube is found to be 45% smaller. The phonon band from the external tube broadens considerably with applied pressure in contrast with the phonon band of the internal tube which stays constant. These pressure dependent phonon shifts of the external and internal tubes and the contrasting phonon line broadening are explained by the elastic continuum shell model which takes into account both the continuous radial and discontinuous tangential stress components

Item Type:Article
Additional Information:Thanks to American Physical Society editor. The definitive version is available at http://prl.aps.org/abstract/PRL/v93/i9/e095506
HAL Id:hal-00934740
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Queen Mary University of London - QMUL (UNITED KINGDOM)
Laboratory name:
Deposited On:22 Jan 2014 14:38

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