Fig. 4: Electronic structures of the nitrogene-like structure on Ag(100).
From: Evidence of a two-dimensional nitrogen crystalline structure on silver surfaces
a ARPES intensity plot along the M-Γ-M direction. The shapes of the energy bands are highlighted with red dashed lines as guides to the eye. b Calculated band structures along the same momentum path as in (a). The calculated bands agree well with the ARPES results, with key features highlighted by orange rectangles in both (a, b). c Calculated density of states (DOS) within the same energy range, showing a prominent peak at 1.1 eV above the Fermi level, marked by the orange line. d dI/dV spectra measured within the corresponding bias range (red). The normalized differential conductance (blue), i.e., dI/dV/(I/V), are overlaid to enhance the visibility of the peak feature. The gray curves represent spectra accquired under different tunneling conditions.
