Extended Data Fig. 6: The Berry curvature of the topological surface state.
From: High-harmonic generation from topological surface states

The Berry curvature show clear threefold rotational symmetry. The values of the colorbar are in atomic unit.
From: High-harmonic generation from topological surface states

The Berry curvature show clear threefold rotational symmetry. The values of the colorbar are in atomic unit.