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Chirality of internal metallic and semiconducting carbon nanotubes

Bacsa, Revathi and Peigney, Alain and Laurent, Christophe and Puech, Pascal and Bacsa, Wolfgang Chirality of internal metallic and semiconducting carbon nanotubes. (2002) Physical Review B, 65 (16). 161404-1. ISSN 0163-1829

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Official URL: http://dx.doi.org/10.1103/PhysRevB.65.161404

Abstract

We have assigned the chirality of the internal tubes of double walled carbon nanotubes grown by catalytic chemical vapor deposition using the high sensitivity of the radial breathing ~RB! mode in inelastic lightscattering experiments. The deduced chirality corresponds to several semiconducting and only two metallic internal tubes. The RB modes are systematically shifted to higher energies when compared to theoretical values. The difference between experimental and theoretical energies of the RB modes of metallic tubes and semiconducting tubes are discussed in terms of the reduced interlayer distance between the internal and the external tube and electronic resonance effects. We find several pairs of RB modes corresponding to different diameters of internal and external tubes.

Item Type:Article
Additional Information:Thanks to American Physical Society editor. The definitive version is available at http://prb.aps.org The original PDF of the article can be found at Physical Review B website : http://dx.doi.org/10.1103/PhysRevB.65.161404
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 - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:28 Jan 2014 11:06

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