Movable Dirac Points with Ferroelectrics: Kink States and Berry Curvature Dipoles

Konstantin S. Denisov, Yuntian Liu, Igor Žutić

Two-dimensional (2D) Dirac states and Dirac points with linear dispersion are the hallmark of graphene, topological insulators, semimetals, and superconductors. Lowering a symmetry…