Comment on "Tunable Band Gaps in Bilayer Graphene-BN Heterostructures"

We study the electronic properties of h-BN/graphene/h-BN ABC-stacked trilayer systems using tight binding and DFT methods. We comment on the recent work of Ramasubramaniam et al. (arxiv:1011.2489) whose results seem to be in disagreement with our recent calculations. Detailed analysis reaffirms our previous conclusions.