Band structure of freestanding (β phase) antimonene ML with and without SOC, represented by red and blue lines, respectively. (b) STM topography of a hexagonal honeycomb shaped antimonene island. The lower panel shows three dI/dV curves measured at the edges and center of the island marked by blue, green, and red arrows in the upper panel. (c) Plot of spatially resolved data of 35 dI/dV curves along the black dashed arrow in panel (b). The three dI/dV curves marked by arrows correspond to those shown in panel (d) with peaks at 1.68 eV (green), 1.85 eV (blue), and 1.95 eV (red). (d) The intensity plot of the dI/dV curves shown in panel (c).^[72]