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“School of Nano-Sciences”

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Paper   IPM / Nano-Sciences / 11684
School of Nano Science
  Title:   Nonlinear conductance reveals positions of carbon atoms in metallic single-wall carbon nanotubes
  Author(s): 
1 . Pouya Partovi Azar
2 . Afshin Namiranian
  Status:   Published
  Journal: Eur. Phys. J. B
  No.:  1
  Vol.:  72
  Year:  2009
  Pages:   7
  Publisher(s):   EDP Sciences
  Supported by:  IPM
  Abstract:
Nonlinear quantum conductance in finite metallic single-wall carbon nanotubes due to presence of a single defect has been studied theoretically using π-orbital tight-binding model. The correction to the conductance induced by defects is sensitively dependent on wavefunction amplitudes of contributing electronic states. It has been shown that by calculating this correction to the first order, we can delineate the position of carbon atoms on tubular surface. It can also be used to specify the SWCNT at hand and its level spacing.


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