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Mechanically changed band gap of single walled carbon nanotube: a third neighbor tight-binding approach

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Central European Journal of Physics

Abstract

Analytical derivation of electronic band gap of Single Walled Carbon Nanotube (SWCNT) under a small percent of uniaxial and torsional strains is in this paper. Our approach is based on a kind of π-Tight Binding (π-TB) approximation which includes interactions of the second and the third neighbors of each carbon atom in addition to the nearest ones. Implementing the approach of this paper, yields more precise results than those of other researches.

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Authors and Affiliations

  1. Department of Electrical Engineering, Shiraz University, Shiraz, Iran

    Mehdi Pakkhesal & Rahim Ghayour

Authors
  1. Mehdi Pakkhesal
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  2. Rahim Ghayour
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Correspondence to Mehdi Pakkhesal.

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Pakkhesal, M., Ghayour, R. Mechanically changed band gap of single walled carbon nanotube: a third neighbor tight-binding approach. centr.eur.j.phys. 8, 304–311 (2010). https://doi.org/10.2478/s11534-009-0102-0

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  • DOI: https://doi.org/10.2478/s11534-009-0102-0

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