Nonzero Berry curvature dipole, magnetic gapped edge states and persistent spin texture in a rotational symmetry preserved van der Waals magnetic topological insulator

We demonstrate that a magnetic van der Waals heterobilayer, comprised of semiconducting monolayers 1H-MoSe 2 (nonmagnetic) and ferromagnet 1H-VSe 2 , exhibits a finite Berry curvature dipole in the absence of strain or twist perturbation.