Figure 2
From: Route towards Localization for Quantum Anomalous Hall Systems with Chern Number 2
(a) Three quantities as functions of disorder strength W for a definite disorder configuration: the band gap Δ (red line), the Berry curvature F (blue line) and the Chern number C of the valence band (grey bar). (b) The location of minimal gap point kmin (red circles) as a function of disorder strength W for the same disorder configuration. The cyan lines indicate their projections on the kx − ky plane. (c) The band gap Δ (red line) and the Chern number C below the gap (grey bar) as functions of disorder strength for 8 different disorder configurations. The intermediate windows (W1, W2) with C = 1 are marked by green arrows.
