Fig. 4: Band structure of the final-state Bloch waves E(Rekz) in a model fcc crystal along the ГX direction. | Nature Communications

Fig. 4: Band structure of the final-state Bloch waves E(Rekz) in a model fcc crystal along the ГX direction.

From: High-energy photoemission final states beyond the free-electron approximation

Fig. 4

a The empty-lattice case V(r) = V0 and (b) a realistic case of spatially modulated pseudopotential, whose typical VΔK is sketched in the insert. The dense multitude of bands is formed by an immense number of G vectors falling into our high-energy region.The contributions of each band into the total photocurrent are quantified by Ikabs (blue colorscale). Whereas in the first case the photocurrent emanates from one single FE band (marked with the corresponding G vectors), in the second case it may distribute over a few bands alongside the FE dispersion, which form a MBFS incorporating a few kzs.

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