Transport in a metallic nanotube at finite temperature

Wei Ren; Cai-Zhuang Wang; Kai-Ming Ho; C. T. Chan

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Transport in a metallic nanotube at finite temperature

机译：在一定温度下在金属纳米管中传输

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We consider the effect of thermal phonon displacements on the coherent transport in carbon nanotubes. The atomic displacements are generated using tight-binding molecular dynamics simulations, and the conductances are computed using a nonequilibrium Green's function technique. Atomic displacements due to lattice vibrations lead to different levels of conductance reduction and fluctuation on the massive and massless bands of a metallic nanotube. Different conduction regimes are studied by examining the resistance on different length scales. The temperature-induced displacements have a significant impact on the ballistic or diffusive transport in carbon nanotube.

机译：我们考虑了热声子位移对碳纳米管中相干输运的影响。使用紧密结合的分子动力学模拟生成原子位移，并使用非平衡格林函数技术计算电导。由于晶格振动而导致的原子位移导致不同程度的电导降低以及金属纳米管的大质量带和无质量带上的波动。通过检查不同长度范围内的电阻，研究了不同的导电方式。温度引起的位移对碳纳米管中的弹道或扩散传输有重大影响。

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来源
《Physical review》 |2009年第16期|65-68|共4页
作者
Wei Ren; Cai-Zhuang Wang; Kai-Ming Ho; C. T. Chan;
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作者单位

Department of Physics, The Hong Kong University of Science and Technology, Hong Kong, China;

Ames Laboratory-USDOE, Iowa State University, Ames, Iowa 50011, USA;

Ames Laboratory-USDOE, Iowa State University, Ames, Iowa 50011, USA;

Department of Physics, The Hong Kong University of Science and Technology, Hong Kong, China;

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正文语种 eng
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electronic transport in nanoscale materials and structures; thermal properties of small particles; nanocrystals; nanotubes;

机译：纳米材料和结构中的电子传输;小颗粒的热性能;纳米晶体纳米管;

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5. Growth of carbon nanotubes on metallic substrates and study of their interfacial transport properties. [D] . Pal, Sunil K. 2007

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6. Temperature-dependent gas transport performance of vertically aligned carbon nanotube/parylene composite membranes [O] . Lei Zhang, Junhe Yang, Xianying Wang, 2014

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Transport in a metallic nanotube at finite temperature

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