摘要翻译:
我们报道了碳纳米管(CNT)器件中的一种新现象--跨音速效应,它类似于空气动力学中的跨音速效应。它是由纳米管声子的耗散共振引起的,类似于径向呼吸模式,随后在滑动管上的拖曳力剧烈涌动,当管间滑动速度达到临界值时,会遇到多个声子屏障。研究发现,通过施加几何约束或改变纳米管的手性组合,可以调节跨旋顺子效应。
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英文标题:
《Trans-phonon effects in ultrafast nano-devices》
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作者:
Zhiping Xu, Quanshui Zheng, Qing Jiang, Chi-Chiu Ma, Yang Zhao,
Guanhua Chen, Huajian Gao and Gexue Ren
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最新提交年份:
2007
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分类信息:
一级分类:Physics 物理学
二级分类:Materials Science 材料科学
分类描述:Techniques, synthesis, characterization, structure. Structural phase transitions, mechanical properties, phonons. Defects, adsorbates, interfaces
技术,合成,表征,结构。结构相变,力学性质,声子。缺陷,吸附质,界面
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一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
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英文摘要:
We report a novel phenomenon in carbon nanotube (CNT) based devices, the transphonon effects, which resemble the transonic effects in aerodynamics. It is caused by dissipative resonance of nanotube phonons similar to the radial breathing mode, and subsequent drastic surge of the dragging force on the sliding tube, and multiple phonon barriers are encountered as the intertube sliding velocity reaches critical values. It is found that the transphonon effects can be tuned by applying geometric constraints or varying chirality combinations of the nanotubes.
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PDF链接:
https://arxiv.org/pdf/709.0989


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