Society of Tribologists and Lubrication Engineers
نویسندگان
چکیده
A multi-scale theoretical model is presented that is the first to offer quantitative agreement with experimental measurements of selfretraction and oscillation of bilayer graphene. The model integrates density-functional calculations of the energetics driving flake retraction and molecular-dynamics simulations capturing the dynamic response of laterally-offset rough surfaces. We demonstrate that nanoscale roughness explains self-retraction motion and propose a recipe for tuning that motion by controlling friction.
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