Silicene: from monolayer to multilayer — A concise review
Li Hui†, Hui-Xia Fu, Meng Sheng
       
(a) STM image ( V tip = 1.2 V) of coexisting SLS, BLS, and trilayer silicene films. (b) and (c) High resolution STM images of area labeled by white squares in panel (a). The atomic structure of the silicene is superimposed, indicated that the stacking sequence of the adjacent Si layers is ABC stacking. (d) Measured height of topmost single atomic slice of MLS/Ag (111). (e) d I /d V map ( V tip= − 0.4 V) on the surface of MLS/Ag (111) with obvious standing waves of surface states. (f) Linear energy–momentum dispersion by measuring the wavelength of standing waves in d I /d V maps under different bias.