Figure 6

FS and Hall-coefficient of an ideal parabolic band. In (a) dashed lines correspond to the underlying FS, while the arcs appear as full lines. The fraction of ungapped (i.e. ”active”) states \(f_g\) is displayed in (b), and the calculated density of charge carriers \(n_{\text{eff}}\)(line) and \(n_{\text{H}}\) at selected doping levels (points) in c. In this case, the crossover from \(p\) to \(1+p\) is modeled between \(p=0.16\) and \(p=0.28\).