Physics

Gate controlled valley polarizer in bilayer graphene

H. Chen, P. Zhou, et al.

Discover how sign reversal of Berry curvature in bilayer graphene leads to counter-propagating 1D channels with distinct valley indices. This groundbreaking research, conducted by Hao Chen, Pinjia Zhou, Jiawei Liu, Jiabin Qiao, Barbaros Oezyilmaz, and Jens Martin, achieves impressive conductance differences without requiring an external magnetic field—unlocking new possibilities for future experiments.