Figure 5
(a) Schematic figure showing a possible transverse gating setup. The DSM nanostructure has a width of Wy and a thickness of Wz. The structure is assumed to be extended along x-direction which is the transport direction. (b) Energy spectrum of the model with surface potential 2.1 V applied on the two side-surfaces. (c) Energy spectrum of the model when a transverse electric field with E = 3.75 × 10−2 V/ay is applied. Here Wy = 40ay, Wz = 10az. The blue curves are the bulk subbands and the red dotted curves denote the edge states.
