Transfer matrix approach to quantum conductivity calculations in single-wall carbon nanotubes

被引:29
作者
Andriotis, AN
Menon, M
Srivastava, D
机构
[1] Fdn Res & Technol Hellas, Inst Elect Struct & Laser, Iraklion 71110, Crete, Greece
[2] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA
[3] Univ Kentucky, Ctr Computat Sci, Lexington, KY 40506 USA
[4] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
关键词
D O I
10.1063/1.1491406
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We present an efficient transfer matrix formalism for obtaining the quantum conductivity of single-wall carbon nanotubes (SWCN's) based on a nonorthogonal tight-binding scheme. The formalism is used to calculate conductivity in the presence of topological defects and H adsorbates. I-V characteristics show large oscillatory behavior as a function of the number of H adatoms for both (10,0) and (5,5) SWCN's. Furthermore, the conductivity is found to depend sensitively on structural relaxation. (C) 2002 American Institute of Physics.
引用
收藏
页码:2836 / 2843
页数:8
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