Erratum: Tunable and sizable band gap of single-layer graphene sandwiched between hexagonal boron nitride

Correction to: NPG Asia Materials (2012) 4, e6; doi:10.1038/am.2012.10; published online 17 February 2012 Since the publication of the above article, the authors have noticed inconsistency in the references to the 12 configurations presented in Figure 1. In the article text, numerical references (1–12) are given to those configurations, whereas they are labeled alphabetically (a to l) in Figure 1.