Smolyanitsky, A.
and Killgore, J.
(2012),
Anomalous Friction in Suspended Graphene, Nature Materials, [online], https://doi.org/10.1103/PhysRevB.86.125432
(Accessed October 4, 2024)
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Anomalous Friction in Suspended Graphene
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Abstract
Since the discovery of the Amonton's law and with support of modern tribological models, friction between surfaces of three-dimensional materials is known to generally increase when the surfaces are in closer contact. Here, using molecular dynamics simulations of friction force microscopy on suspended graphene, we demonstrate an increase of friction when the scanning tip is retracted away from the sample. We explain the observed behavior and address why this phenomenon has not been observed for isotropic 3D materials.Citation
Nature Materials
Volume
86
Pub Type
Journals
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Keywords
nanotribology, graphene, friction, molecular dynamics, simulation, anomalous friction, viscoelastic ploughing
Citation
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Created September 20, 2012, Updated November 10, 2018