Abstract
We use nonequilibrium molecular-dynamics simulations to study the effect of structural defects on the thermal conductivity of graphene. Focusing on 5-7 and 5-8 defects in the graphene honeycomb lattice, we find that depends sensitively on whether the defects are isolated, form lines, or form extended arrangements in haeckelites. Our results indicate that the presence of defects makes anisotropic and, depending on the temperature, quenches its value by one to two orders of magnitude with respect to graphene, mainly by reducing the phonon mean free path.
- Received 11 December 2013
- Revised 21 February 2014
DOI:https://doi.org/10.1103/PhysRevB.89.125421
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