Stacking faults and partial dislocations in graphene

نویسندگان

  • M. P. Ariza
  • R. Serrano
  • J. P. Mendez
  • M. Ortiz
چکیده

We investigate two mechanisms of crystallographic slip in graphene, corresponding to glide and shuffle generalized stacking faults (GSF), and compute their -curves using Sandia National Laboratories Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS). We find evidence of metastable partial dislocations for the glide GSF only. The computed values of the stable and unstable stacking-fault energies are suggestive of a high stability of full dislocations against dissociation and of dislocation dipoles against annihilation.

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تاریخ انتشار 2012