Effects of structural deformation and tube chirality on electronic conductance of carbon nanotubes

被引：0
|
作者：
Svizhenko, Alexei [1 ]
Maiti, Amitesh [1 ]
Anantram, M. P. [1 ]
机构：
[1] NASA, Ames Res Ctr, MS, Moffett Field, CA 94035 USA
来源：
ICCN 2002: INTERNATIONAL CONFERENCE ON COMPUTATIONAL NANOSCIENCE AND NANOTECHNOLOGY | 2002年
关键词：
nanotube; molecular dynamics; tight-binding; Green's function; sensor;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A combination of large scale classical force-field (UFF), density functional theory (DFT) and tight-binding Green's function transport calculations is used to study the electronic properties of carbon nanotubes under the twist, bending and AFM-tip deformation. We found that in agreement with experiment a significant change in electronic conductance can be induced by AFM-tip deformation of metallic zigzag tubes and by twist deformation of armchair tubes. The effect is explained in terms of bandstructure change under deformation.
引用
收藏
页码：314 / 317
页数：4
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