Conductance of carbon nanotubes with a vacancy

The conductance of carbon nanotubes with a vacancy is studied in a tight-binding model.We examine the Fermi energy [straight epsilon] dependence of the conductance and show it is quantized into zero, one, and two times the conductance quantum e2/π(h/2π) depending on the type of vacancy in the half-f...

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Bibliographic Details
Published in:Journal of the Physical Society of Japan 1999-03, Vol.68 (3), p.716-719
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 of carbon nanotubes with a vacancy is studied in a tight-binding model.We examine the Fermi energy [straight epsilon] dependence of the conductance and show it is quantized into zero, one, and two times the conductance quantum e2/π(h/2π) depending on the type of vacancy in the half-filled case, i.e., [straight epsilon] = 0. In the presence of a magnetic field, the conductance is scaled by the component of the magnetic field in the direction of the vacancy.
ISSN:0031-9015
1347-4073
DOI:10.1143/jpsj.68.716