Please use this identifier to cite or link to this item: https://physrep.ff.bg.ac.rs/handle/123456789/507
Title: Symmetry of chiral nanotubes: Natural torsion and diffraction evidence
Authors: Vuković, Tatjana 
Lazić, Nataša 
Milošević, Ivanka 
Damnjanović, Milan 
Keywords: Chirality;Single-walled carbon nanotubes;Symmetry breaking;Torsion
Issue Date: 1-Jan-2012
Journal: Physica Status Solidi (B) Basic Research
Abstract: 
Optimizations performed with geometrical, molecular mechanics, and density functional models show that chiral carbon nanotube configuration is slightly twisted with respect to the rolled-up geometry. The torsion angle is small, <1°Å-1 for ultrathin tubes, and decreases with tube diameter. The effect can be explained through breaking of local symmetry of the equally distant neighbors in graphene, which is diminished by the torsion. Although, the twist is small, still, we single out features in diffraction patterns which can distinguish between twisted and non-twisted configurations, at least for narrow single-walled carbon nanotubes. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
URI: https://physrep.ff.bg.ac.rs/handle/123456789/507
ISSN: 0370-1972
DOI: 10.1002/pssb.201200100
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