Conductance of carbon nanotubes with a vacancy

被引:96
作者
Igami, M
Nakanishi, T
Ando, T
机构
[1] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan
[2] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
[3] Univ Tokyo, Inst Solid State Phys, Minato Ku, Tokyo 1068666, Japan
关键词
graphite; carbon nanotube; Fullerene tube; topological disorder; magnetoconductance; recursive Green's function technique; Landauer's formula; mesoscopic system;
D O I
10.1143/JPSJ.68.716
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The conductance of carbon nanotubes with a vacancy is studied in a tight-binding model. We examine the Fermi energy epsilon dependence of the conductance and show it is quantized into zero, one, and two times the conductance quantum e(2)/pi (h) over bar depending on the type of vacancy in the half-filled case, i.e., 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.
引用
收藏
页码:716 / 719
页数:4
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