Multi-walled carbon nanotubes (MWCNTs) show an oscillation in electrical resistance (from I–V measurements) during mechanical distortion in which peak separation is inversely correlated with the diameter of the MWCNTs. These results provide the first experimental support of the theoretical prediction that distortion causes Van Hove singularities and Dirac cones in MWCNTs to misalign and cause the opening of the band gap, and suggest that when fabricating contacts for CNTs for device applications, the pressure caused by the contact deposition method must be taken into account for manufacturing devices with consistent properties.

中文翻译：

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单个多壁碳纳米管的压力依赖性传导：机械变形的影响

多壁碳纳米管 (MWCNT) 在机械变形过程中显示出电阻振荡（来自I - V测量），其中峰值分离与 MWCNT 的直径成反比。这些结果为理论预测提供了第一个实验支持，即畸变导致 MWCNT 中的范霍夫奇点和狄拉克锥错位并导致带隙打开，并表明在制造用于器件应用的 CNT 触点时，由制造具有一致特性的器件时必须考虑接触沉积方法。