Silicene: from monolayer to multilayer — A concise review
Li Hui†, Hui-Xia Fu, Meng Sheng
       
(a) The side and (b) top view of free-standing low-buckled silicene obtained from DFT calculation. (c) The potential energy surface (PES) of silicene versus lattice constant. (d) The calculated band structure of low-buckled silicene.