Anomalous friction in suspended graphene
Mesoscale and Nanoscale Physics
2012-10-30 v2 Materials Science
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 3-D materials.
Keywords
Cite
@article{arxiv.1207.5173,
title = {Anomalous friction in suspended graphene},
author = {A. Smolyanitsky and J. P. Killgore},
journal= {arXiv preprint arXiv:1207.5173},
year = {2012}
}