Molecular dynamics simulation is carried out to model the single-asperity friction in atomic force microscope experiments. Superlubricity is achieved through misalignment between the AFM tip and substrate. Direct observation of the buried interface reveals that incommensurability-induced inhomogeneous shear stress can cause ultra-low atomic scale friction.
Tribology & Lubrication Technology
Dong, Yalin; Martini, Ashlie; Li, Qunyang; and Carpick, Robert W., "Atomic Friction Studied by Modeling the Buried Inteface" (2011). Mechanical Engineering Faculty Research. 803.