title: Thermal-induced edge barriers and forces in interlayer interaction of concentric carbon nanotubes.
abstract: Molecular dynamics simulations reveal that thermal-induced edge barriers and forces can govern the interlayer interaction of double walled carbon nanotubes. As a result, friction in such systems depends on both the area of contact and the length of the contact edges. The latter effect is negligible in macroscopic friction and provides a feasible explanation for the seemingly contradictory laws of interlayer friction, which have been reported in the literature. The temperature-dependent edge forces can be utilized as a driving force in carbon nanotube thermal actuators, and has general implications for nanoscale friction and contact.
authors: Shanghai Key Laboratory of Mechanics in Energy Engineering, Division of Modern Mechanics of E-Institute of Shanghai Universities, Shanghai University, Shanghai 200072, People's Republic of China.
authors: Zhengrong
authors: Z
authors: Guo
authors: Tienchong
authors: T
authors: Chang
authors: Xingming
authors: X
authors: Guo
authors: Huajian
authors: H
authors: Gao