Figure 2. Landau level quantization in two-dimensional InSe.

(a) Energy of the Landau levels (LLs) versus B for electrons (blue) and holes (red) in the conduction and valence bands (L = 1 layer and 5 layers). The hole LLs are zoomed-in in parts b-c. (b,c) Hole LLs versus B at energies around Γ (b) and the valence band maximum, VBM (c) for L = 1 layer (left) and 5 layers (right). In parts (b) and (c), Γ and VBM indicate the VB edge at Γ and VBM at B = 0.