论文标题
最小的Archimedean螺钉：多壁纳米管中的刻面动力和摩擦
The Smallest Archimedean Screw: Facet Dynamics and Friction in Multi-Walled Nanotubes
论文作者
论文摘要
我们确定了一种新的材料现象，其中微小的机械操作会引起刻面多壁纳米管中明显的全局结构重新配置。这种行为对这些系统的摩擦学特性具有很大的影响，并且可能是了解最近针对碳氮化碳纳米管测量的增强的壁间摩擦的关键。值得注意的是，在同轴滑动时，这些系统中螺旋面的快速旋转可以用作纳米级阿基赛马螺钉，以方向物理分子的方向运输。
We identify a new material phenomenon, where minute mechanical manipulations induce pronounced global structural reconfigurations in faceted multi-walled nanotubes. This behavior has strong implications on the tribological properties of these systems and may be the key to understand the enhanced inter-wall friction recently measured for boron-nitride nanotubes with respect to their carbon counterparts. Notably, the fast rotation of helical facets in these systems upon coaxial sliding may serve as a nanoscale Archimedean screw for directional transport of physisorbed molecules.
