Berry curvature dipole current in the transition metal dichalcogenides family
Berry curvature dipole current in the transition metal dichalcogenides family
We study the quantum nonlinear Hall effect in two-dimensional materials with time-reversal symmetry. When only one mirror line exists, a transverse charge current occurs in second-order response to an external electric field, as a result of the Berry curvature dipole in momentum space. Candidate 2D materials to observe this effect …