Friction through reversible jumps of surface atoms.

@article{Fajardo2014FrictionTR,
  title={Friction through reversible jumps of surface atoms.},
  author={Oscar Y Fajardo and Itay Barel and Michael Urbakh},
  journal={Journal of physics. Condensed matter : an Institute of Physics journal},
  year={2014},
  volume={26 31},
  pages={315005}
}
We propose a microscopic model that incorporates the effect of thermally activated motion of surface atoms on nanoscopic friction. Our calculations demonstrate that the stick-slip motion of the tip is governed by two competing processes: (i) jumps of the surface atoms to the tip which tend to inhibit sliding, and (ii) jumps back to the sample which give… CONTINUE READING