Journal
PHYSICAL REVIEW B
Volume 79, Issue 15, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.79.153401
Keywords
ab initio calculations; density functional theory; graphene; ground states; nanostructured materials; van der Waals forces
Funding
- FAPESP
- CNPq
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We show that the ground state of zigzag bilayer graphene nanoribbons is nonmagnetic. It also possesses a finite gap, which has a nonmonotonic dependence with the width as a consequence of the competition between bulk and strongly attractive edge interactions. All results were obtained using ab initio total-energy density functional theory calculations with the inclusion of parametrized van der Waals interactions.
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