Please use this identifier to cite or link to this item: https://physrep.ff.bg.ac.rs/handle/123456789/39
Title: Structural model of semi-metallic carbon nanotubes
Authors: Dmitrović, Saša 
Popović, Zoran 
Damnjanović, Milan 
Milošević, Ivanka 
Keywords: Electronic band structure;Electronic density of states;Helically coiled carbon nanotubes;Line group symmetry;Semi-metals
Issue Date: 1-Jan-2013
Journal: Physica Status Solidi (B) Basic Research
Abstract: 
Electronic band structure and electronic density of states (DOS) of single-walled helically coiled carbon nanotubes (HCCNTs) are numerically calculated by symmetry implemented density functional tight binding method. It is found that unlike straight single-walled carbon nanotubes, single-walled HCCNTs can be semi-metallic, having high DOS at Fermi level. We show that this is a consequence of the local structure of HCCNTs, i.e., that by changing positions of pentagons and heptagons within a monomer, transitions between metallic, semi-metallic, quasi-metallic, and semiconducting structures can be made. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
URI: https://physrep.ff.bg.ac.rs/handle/123456789/39
ISSN: 0370-1972
DOI: 10.1002/pssb.201300086
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