Thermal effects on atomic friction
材料科学
2009-11-07 v1
摘要
We model friction acting on the tip of an atomic force microscope as it is dragged across a surface at non-zero temperatures. We find that stick-slip motion occurs and that the average frictional force follows , where is the tip velocity. This compares well to recent experimental work (Gnecco et al, PRL 84, 1172), permitting the quantitative extraction of all microscopic parameters. We calculate the scaled form of the average frictional force's dependence on both temperature and tip speed as well as the form of the friction-force distribution function.
引用
@article{arxiv.cond-mat/0109168,
title = {Thermal effects on atomic friction},
author = {Yi Sang and Martin Dube and Martin Grant},
journal= {arXiv preprint arXiv:cond-mat/0109168},
year = {2009}
}
备注
Accepted for publication, Physical Review Letters