| 单壁碳纳米管中稳态机械波的激发条件研究 |
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| 引用本文： | 陈敏,肖定全. 单壁碳纳米管中稳态机械波的激发条件研究[J]. 人工晶体学报, 2010, 39(2): 355-360 |
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| 作者姓名： | 陈敏 肖定全 |
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| 作者单位： | 四川大学材料科学与工程学院,成都,610064;成都信息工程学院光电技术系,成都,610225;电子薄膜与集成器件国家重点实验室,成都,610054;四川大学材料科学与工程学院,成都,610064;电子薄膜与集成器件国家重点实验室,成都,610054 |
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| 基金项目： | 国家自然科学基金重大国际合作研究项目，面上项目，电子薄膜与集成器件国家重点实验室开放课题 |
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| 摘 要： | 通过分子动力学模拟,对单壁碳纳米管中稳态机械波的激发条件进行了详细的研究.利用所施加的周期性机械外力,使单壁碳纳米管产生局部径向形变,该形变将以单壁碳纳米管的管壁为弹性媒质传播开去,从而在单壁碳纳米管中形成机械波;机械波产生的条件依赖于单壁碳纳米管波动系统能量的维持和受迫振动区域形变方向的控制;稳定机械波形成的最佳条件是碳纳米管的形变度和受迫振动频率之间的最优匹配,以及由此形成的单壁碳纳米管在周期性外力作用下产生的共振.
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| 关 键 词： | 单壁碳纳米管 分子动力学模拟 形变 机械波, |
Study on Excitation Condition of Stabilized Mechanical Waves in Single-walled Carbon Nanotubes |
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| CHEN Min,XIAO Ding-quan. Study on Excitation Condition of Stabilized Mechanical Waves in Single-walled Carbon Nanotubes[J]. Journal of Synthetic Crystals, 2010, 39(2): 355-360 |
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| Authors: | CHEN Min XIAO Ding-quan |
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| Affiliation: | CHEN Min1,2,3,XIAO Ding-quan1,3(1.School of Materials Science , Engineering,Sichuan University,Chengdu 610064,China,2.Department of Optoelectronic Technology,Chengdu University of Information Technology,Chengdu 610225,3.State Key Laboratory of Electronic Thin Films , Integrated Devices,Chengdu 610054,China) |
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| Abstract: | The excitation condition of the stabilized mechanical waves in single-walled carbon nanotubes(SWNT) were investigated by molecular dynamics simulation.Using external periodic forces,local forced oscillation was made in SWNT.With the propagating of the deformation induced by oscillation,the mechanical waves were formed in SWNT.The results of the simulations indicated that the generation of the mechanical waves is dependant on the supply of the energy for fluctuating system and the control of the direction of... |
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| Keywords: | single-walled carbon nanotube molecular dynamics simulation deformation mechanical wave |
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