Journal
NANO LETTERS
Volume 11, Issue 8, Pages 3113-3116Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl2011142
Keywords
Boron-nitride; graphene; edges; interfaces; bandgap; magnetism
Categories
Funding
- Department of Energy, BES [ER46598]
- Office of Naval Research, MURI
- NSF [CNS0821727]
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Interfaces play a key role in low dimensional materials like graphene or its boron nitrogen analog, white graphene. The edge energy of hexagonal boron nitride (h-BN) has not been determined as its lower symmetry makes it difficult to separate the opposite B-rich and N-rich zigzag sides. We report unambiguous energy values for arbitrary edges of BN, including the dependence on the elemental chemical potentials of B and N species. A useful manifestation of the additional Gibbs degree of freedom in the binary system, this dependence offers a way to control the morphology of pure BN or its carbon inclusions and to engineer their electronic and magnetic properties.
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