Figure 1
From: Uniaxial strain-induced mechanical and electronic property modulation of silicene
Silicene configuration and its first Brillouin zone. (a) Top view of the four-atom rectangular unit cell of silicene. δ i (i = 1, 2, and 3) are the three nearest-neighbor connecting vectors. (b) Side view of silicene. (c) Top view of the two-atom primitive cell of silicene. a1 and a2 are the lattice vectors. a1 = (a x , -a y ) and a2 = (a x , a y ). (d) Schematic of silicene under the ZZ strain and the corresponding first Brillouin zone with high-symmetry points.