Figure 2
From: Spatial potential ripples of azimuthal surface modes in topological insulator Bi2Te3 nanowires
Surface potential ripples of Bi2Te3 nanowires.
SEM, (a,b) and AFM topography, (c,d), images of 250 nm and 45 nm diameter NWs. 2-dimensional, (e,f) and 3-dimensional, (g,h), KPM maps of the surface potential of the NWs.
