摘要翻译:
在摩擦力显微镜(FFM)实验中,我们分析了一个具有超低有效尖端质量的先进双弹簧模型,以预测原子粘滑运动中非平凡的、物理上丰富的“精细结构”。我们证明了这种精细结构存在于最近令人费解的实验中。这表明,尖端顶点可以完全或部分离域,从而为FFM测量的结果提供了新的线索,也可能为建立宏观滑动体之间接触的凸起提供了新的线索。
---
英文标题:
《Evidence for contact delocalization in atomic scale friction》
---
作者:
D. Abel, S. Yu. Krylov, and J. W. M. Frenken
---
最新提交年份:
2007
---
分类信息:
一级分类:Physics 物理学
二级分类:Soft Condensed Matter 软凝聚态物质
分类描述:Membranes, polymers, liquid crystals, glasses, colloids, granular matter
膜,聚合物,液晶,玻璃,胶体,颗粒物质
--
一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
--
---
英文摘要:
We analyze an advanced two-spring model with an ultra-low effective tip mass to predict nontrivial and physically rich 'fine structure' in the atomic stick-slip motion in Friction Force Microscopy (FFM) experiments. We demonstrate that this fine structure is present in recent, puzzling experiments. This shows that the tip apex can be completely or partially delocalized, thus shedding new light on what is measured in FFM and, possibly, what can happen with the asperities that establish the contact between macroscopic sliding bodies.
---
PDF链接:
https://arxiv.org/pdf/707.3072