Journal
APPLIED PHYSICS LETTERS
Volume 104, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4863661
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Funding
- Flemish Science Foundation (FWO-Vl)
- Methusalem Foundation of the Flemish Government
- EU-Marie Curie IIF postdoctoral Fellowship [299855]
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The spatial dependence of the van der Waals (vdW) energy between graphene and hexagonal boron-nitride (h-BN) is investigated using atomistic simulations. The van der Waals energy between graphene and h-BN shows a hexagonal superlattice structure identical to the observed Moire pattern in the local density of states, which depends on the lattice mismatch and misorientation angle between graphene and h-BN. Our results provide atomistic features of the weak van der Waals interaction between graphene and BN which are in agreement with experiment and provide an analytical expression for the size of the spatial variation of the weak van der Waals interaction. We also found that the A-B-lattice symmetry of graphene is broken along the armchair direction. (C) 2014 AIP Publishing LLC.
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