Fig. 3: Band dispersions along the ГX direction for Ag(100).
From: High-energy photoemission final states beyond the free-electron approximation
Theoretical E(k) (a) compared with the experimental out-of-plane ARPES dispersions at kx = 0 (b, the spectral intensity represented in logarithmic scale) and (c) in-plane dispersions for the indicated hv values, bringing Kz to the successive Г points. A zoom-in of the sp-band (d) shows its replicas and added broadening (such as marked by magenta arrows) most evident in the Kz-MDC at EF (yellow line) as multiple and broadened spectral peaks, manifesting the MBFSs. These effects are beyond the one-step calculations of the ARPES intensity and Kz-MDC with FE-like final states (e).
