Effects of Lattice Vacancy in Carbon Nanotubes Conductance Quantization

  • Igami M
  • Nakanishi T
  • Ando T
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Abstract Conductance of carbon nanotubes (CN's) with a lattice vacancy or strong and short-range impurity potential is studied within a tight-binding model. The conductance is quantized into zero, one, or two times the conductance quantum e 2/πħ depending on the type of the vacancy if its size is much smaller than the circumference of CN.

Author-supplied keywords

  • Landauer's formula
  • carbon nanotube
  • graphite
  • mesoscopic system
  • recursive Green's function technique

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  • Masatsura Igami

  • Takeshi Nakanishi

  • Tsuneya Ando

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