Figure 4

With model parameters same as in Fig. 3, the developments of quantities for a typical disorder configuration as functions of disorder strength W: the local gaps at 4 Dirac points Δ_i (solid lines), the minimal band gap Δ (red dotted line) and the Chern number C (grey bar).

Note that after W > 3.6, the minimal band gap will not be located at any of the Dirac points any more.