ELECTRONIC BAND STRUCTURE OF CARBON NANOTUBES WITH QUINOID STRUCTURE

被引：0
|
作者：
Nguyen Ngoc Hieu [1 ]
Nguyen Pham Quynh Anh [2 ]
机构：
[1] Duy Tan Univ, Ctr Res & Dev, Da Nang, Vietnam
[2] Hue Univ Sci, Dept Phys, Hue, Vietnam
来源：
MODERN PHYSICS LETTERS B | 2013年 / 27卷 / 25期
关键词：
Deformed carbon nanotubes; tight-binding approximation; quinoid structure; FULLERENE TUBULES; BOND-ALTERNATION; TRANSPORT; GRAPHENE; LATTICE; STRAIN; C-60; GAP;
D O I：
10.1142/S0217984913501790
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this paper, we fully describe the geometry of atomic structure of carbon nanotube with quinoid structure. Electronic energy band structure of carbon nanotubes with quinoid structure is studied by tight-binding approximation. In the presence of bond alternation, calculations show that only armchair (n, n) carbon nanotube (without twisting) remains metallic and zigzag (3 nu - 1,-3 + 1) CNT becomes metallic at the critical elongation. Effect of deformation on the change of band gap is also calculated and discussed.
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页数：10
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