Elastic and non-linear stiffness of graphene: a simple approach
arXiv:1001.4112 · doi:10.1103/PhysRevB.81.073405
Abstract
The recent experiment [Science \textbf{321}, 385 (2008)] on the Young's modulus and third-order elastic stiffness of graphene are well explained in a very simple approach, where the graphene is described by a simplified system and the force constant for the non-linear interaction is estimated from the Tersoff-Brenner potential.
4 pages, 4 figures
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