Kavli Affiliate: N. C. Yeh | First 5 Authors: C. -C. Hsu, M. L. Teague, J. -Q. Wang, N. -C. Yeh, | Summary: The existence of nontrivial Berry phases associated with two inequivalent valleys in graphene provides interesting opportunities for investigating the valley-projected topological states. Examples of such studies include observation of anomalous quantum Hall […]