Silicene: from monolayer to multilayer

Silicene: from monolayer to multilayer — A concise review

Li Hui†, Hui-Xia Fu, Meng Sheng

Upper panels: Top and side views of (a) 1AA, (b) 1AB, (c) 2AA, and (d) slide-2AA structures of BLS. Lower panel (e): Cohesive energy (PBE level) versus lattice constant for AA (blue line) and AB (red line) stacking modes. The labels 1, 2, 3 in blue and red fonts denote each of three minima found for AA and AB modes, respectively. The cohesive energy of slide-2AA versus lattice constant (cyan short curve) is also shown.^{[ 7 ]}