Figure 1

Optimized configurations of the considered boron nanowires (red circles). (a) α-a [100]_, (b) α-b [010], (c) α-c [001], (d) β-a [100], (e) β-b [010], and (f) β-c [001]. Herein, for the same configuration, the left and right are respectively corresponding to the side and top views.