Figure 1
From: Si and Ge based metallic core/shell nanowires for nano-electronic device applications

(a) and (b) Front views of the optimized structures of Sb/Ge core shell nanowires. (a) Sb/Ge NW with Sb core, wrapped by 1 ML Ge-shell, denoted Sb/Ge (R). (b) Sb-core wrapped by 2 ML Ge-shell having the total diameter of 22.83 Å, denoted Sb/Ge (2 R). Similar structures have been considered for As/Ge, As/Si and Sb/Si. (c) Schematic view of the two-probes core/shell NW system having 5 primitive cells along the z-axis. The central scattering region, left electrode and right electrode are indicated.