English

Nano-indentation of circular graphene flakes

Materials Science 2011-12-07 v1 Mesoscale and Nanoscale Physics

Abstract

Nano-indentation of circular graphene flakes are studied by using Molecular Dynamics simulation. We show that the theory of continuum elasticity based on nonlinear F\"{o}pple-Hencky equations is applicable on a circular suspended graphene flake. Our simulation results are plenty compatible to those results calculated by the nonlinear elasticity theory. We find the force-displacement curves in good agreement with the recent experimental measurements and conclude they are temperature independent. In addition, we find the vibration frequency for such a system and monitor that it behaves as a sinusoidal manner at small circular graphene size.

Keywords

Cite

@article{arxiv.0903.5035,
  title  = {Nano-indentation of circular graphene flakes},
  author = {Mehdi Neek-Amal and Reza Asgari},
  journal= {arXiv preprint arXiv:0903.5035},
  year   = {2011}
}

Comments

4 pages, 4 figures, High quality figures can be requested to the authors