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Investigation of the carbon nanotube AFM tip contacts: free sliding versus pinned contact

机译:碳纳米管AFM尖端接触的研究:自由滑动与固定接触

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摘要

Mechanical response of carbon nanotube atomic force microscope probes are investigated using a thermal noise forcing. Thermal noise spectra are able to investigate mechanical behaviors that cannot be studied using classical atomic force microscope modes. Experimental results show that the carbon nanotube contacts can be classified in two categories: the free sliding and pinned cases. The pinned contact case requires the description of the cantilever flexural vibrations with support spring-coupled cantilever boundary conditions. Our experimental results show that carbon nanotubes exhibit different contact behaviors with a surface, and in turn different mechanical responses.
机译:使用热噪声强迫研究了碳纳米管原子力显微镜探针的机械响应。热噪声谱能够研究无法使用经典原子力显微镜模式研究的机械行为。实验结果表明,碳纳米管触点可分为两类:自由滑动和固定情况。固定的接触盒需要描述悬臂弯曲振动以及支撑弹簧耦合的悬臂边界条件。我们的实验结果表明,碳纳米管与表面的接触行为不同,而机械响应也不同。

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