Power law load dependence of atomic friction
材料科学
2009-11-10 v1
摘要
We present a theoretical study of the dynamics of a tip scanning a graphite surface as a function of the applied load. From the analysis of the lateral forces, we extract the friction force and the corrugation of the effective tip-surface interaction potential. We find both the friction force and potential amplitude to have a power law dependence on applied load with exponent . We interpret these results as characteristic of sharp undeformable tips in contrast to the case of macroscopic and elastic microscopic contacts.
引用
@article{arxiv.cond-mat/0404044,
title = {Power law load dependence of atomic friction},
author = {C. Fusco and A. Fasolino},
journal= {arXiv preprint arXiv:cond-mat/0404044},
year = {2009}
}
备注
4 pages, 4 figures