Band Structure Variation for SWCNTs under Deformation

Abstract

The electronic properties of single walled carbon nanotubes (SWCNTs)influenced by the mechanical elastic deformation are investigated by using a tightbindingapproximation. We analyze the band structure for SWCNTs in a wide range ofenergies around a Fermi energy level. Our work includes the uniaxial, torsional and sublatticedeformation, which is applied to modify the electronic transport properties ofSWCNTs, e.g. the energy spectrum as a function of the deformation tensor. However, theresults showed that the electronic properties of SWCNTs are affected by deformationprocesses, where the energy spectrum is changed perceptibly.