Figure 3
From: Spiral Modes and the Observation of Quantized Conductance in the Surface Bands of Bismuth Nanowires
Conductance of the 50-nm Bi nanowire. (a) G of sample Q1 as a function of B measured at 1.5 K. The dashed line represents the linear fit G W ν, where G W  = 3.0 × 10−6 Ω−1 and ν = B (0.98 T)−1. (b) The scale for G is expanded so as to make the conductance steps at ν = 1, 2 and 3 evident. The plateaus are indicated with horizontal lines, and the values of the steps of G are indicated. Inset. Illustration of the nanowire encircled by surface holes in high-mobility (green) and low-mobility (red) orbits based on our estimate for the effect of the Lorentz force. The toroidal subsurface confinement potential V(r) of surface range w and the Lorentz forces (F L>0 and F L<0) are also shown.
