Defect-induced perturbations of atomic monolayers on solid surfaces
软凝聚态物质
2009-11-07 v1
摘要
We study long-range morphological changes in atomic monolayers on solid substrates induced by different types of defects; e.g., by monoatomic steps in the surface, or by the tip of an atomic force microscope (AFM), placed at some distance above the substrate. Representing the monolayer in terms of a suitably extended Frenkel-Kontorova-type model, we calculate the defect-induced density profiles for several possible geometries. In case of an AFM tip, we also determine the extra force exerted on the tip due to the tip-induced de-homogenization of the monolayer.
引用
@article{arxiv.cond-mat/0206141,
title = {Defect-induced perturbations of atomic monolayers on solid surfaces},
author = {H. Schiessel and G. Oshanin and A. M. Cazabat and M. Moreau},
journal= {arXiv preprint arXiv:cond-mat/0206141},
year = {2009}
}
备注
4 pages, 2 figures