Symmetry breaking in commensurate graphene rotational stacking; a comparison of theory and experiment
Symmetry breaking in commensurate graphene rotational stacking; a comparison of theory and experiment
Graphene stacked in a Bernal configuration (${60}^{\ifmmode^\circ\else\textdegree\fi{}}$ relative rotations between sheets) differs electronically from isolated graphene due to the broken symmetry introduced by interlayer bonds forming between only one of the two graphene unit cell atoms. A variety of experiments have shown that non-Bernal rotations restore this broken symmetry; consequently, …