Anomalous Hall effect in strain-engineered graphene systems

The pseudo-magnetic field in graphene is of significant interest because it provides a means to modify the band structures and consequently the electronic properties through mechanical deformations or, more precisely, by engineering the strain^1,2. Here, we report the observation of a non-vanishing Hall conductivity in a strain-engineered graphene system in the absence of an external magnetic field.

1. Jiang, Y. et al. Visualizing strain-induced pseudomagnetic fields in graphene through an hBN magnifying glass. Nano Lett. 17, 28392843 (2017).
2. Liu, Y. et al. Tailoring sample-wide pseudo-magnetic fields on a graphene-black phosphorus heterostructure. Nat. Nanotech. 13, 828834 (2018).