Numerical study of transport in carbon nanotubes with lattice vacancy

The conductance is calculated for approximately 1.6×105 armchair carbon nanotubes (CN's) with a different lattice vacancy in a tight-binding model using a multi-channel Landauer's formula. When the vacancy is much smaller than the circumference of CN, the conductance is quantized into zero...

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Bibliographic Details
Published in:Journal of the Physical Society of Japan 1999-10, Vol.68 (10), p.3146-3149
Main Authors: IGAMI, M, NAKANISHI, T, ANDO, T
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Conductivity of specific materials
Electronic transport in condensed matter
Exact sciences and technology
Fullerenes and related materials
Physics
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Summary:The conductance is calculated for approximately 1.6×105 armchair carbon nanotubes (CN's) with a different lattice vacancy in a tight-binding model using a multi-channel Landauer's formula. When the vacancy is much smaller than the circumference of CN, the conductance is quantized into zero, one, and two times the conductance quantum e2/π(h/2π) depending only on the site-number difference between removed A and B sublattice sites.
ISSN:0031-9015
1347-4073
DOI:10.1143/jpsj.68.3146