| 碳纳米管中Stone-Wales缺陷的对称性效应 |
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| 引用本文： | 杨云青,王蜀霞,胡慧君,饶早英,牛君杰.碳纳米管中Stone-Wales缺陷的对称性效应[J].重庆工学院学报,2007(12). |
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| 作者姓名： | 杨云青 王蜀霞 胡慧君 饶早英 牛君杰 |
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| 作者单位： | 重庆大学数理学院 重庆400044 |
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| 基金项目： | 重庆市自然科学基金资助项目(CSTC,2006BB4018) |
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| 摘 要： | 采用π电子紧束缚模型,结合实空间的格林函数方法计算了(10,10),(12,0),(10,7)缺陷碳纳米管的电导和态密度,分析了Stone-Wales缺陷的对称性效应.结果表明,Stone-Wale缺陷产生了2个具有确定宇称的准束缚态,电导中的波谷和局域态密度中的波峰都是由准束缚态产生的.
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| 关 键 词： | 碳纳米管 Stone-Wales缺陷 对称性效应 |
Symmetry Effects of Carbon Nanotubes by Stone-Wales Defect |
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| YANG Yun-qing,WANG Shu-xia,HU Hui-jun,RAO Zao-ying,NIU Jun-jie.Symmetry Effects of Carbon Nanotubes by Stone-Wales Defect[J].Journal of Chongqing Institute of Technology,2007(12). |
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| Authors: | YANG Yun-qing WANG Shu-xia HU Hui-jun RAO Zao-ying NIU Jun-jie |
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| Abstract: | The symmetry effects of defect in the single-walled kinds of carbon nanotubes are discussed in this paper.The conductance and the density of states of carbon nanotubes are calculated at(10,10),(12,0),(10,7) based on the tighten-bind up model and the true-space Green's Functions.It is indicated that two quasibound states with certain space-symmetry are produced by the Stone-Wales defect,resulting in the wave bottoms in conductance and wave peaks in local density of states. |
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| Keywords: | carbon nanotubes Stone-Wales defect symmetry effect |
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