Numerical Investigation of the Bombardment of a Graphene Sheet by a Beam of Carbon Atoms

Authors O.V. Khomenko, M.V. Prodanov, Yu.V. Scherbak
Affiliations Sumy State University, 2, Rimsky-Korsakov Str., 40007, Sumy, Ukraine
Issue Volume 1, Year 2009, Number 2
Dates Received 8 September 2009, in final form 21 October 2009
Citation O.V. Khomenko, M.V. Prodanov, Yu.V. Scherbak, J. Nano- Electron. Phys. 1 No2, 66 (2009)
PACS Number(s) 61.43.Bn, 62.25.Mn
Keywords Graphene (23) , Bombardment, Fracture, Thermostat, Molecular dynamics.
Classical molecular dynamics simulations of the bombardment of a graphene sheet by a beam of carbon atoms are carried out. Covalent bonds in the irradiated sample are described by the Brenner potential. The approximation of elastic balls interacting with graphene via the Lennard-Jones potential is used for particles in a beam. The influence of the energy and density of irradiating carbon atoms and of the presence of a thermostat on physical processes occurring during the collisions with the sample is investigated. Energy values of the particles in a beam, which are enough for the sample destruction, are defined.

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