Fig. 7: Out-of-plane ARPES data for Si(100) along the ГX direction.
From: High-energy photoemission final states beyond the free-electron approximation
a Dispersions expected from the DFT valence bands and FE final states with V0 = 12.6 eV. The spin-orbit split band dispersions allowed by the selection rules in the \({\bar{\varGamma }}_{0}\) and \({\bar{\varGamma }}_{1}\) points of two surface BZs are shown bold and pale, respectively; b, c Measured in the \({\bar{\varGamma }}_{0}\) and \({\bar{\varGamma }}_{1}\) points. The arrows mark the allowed spin-orbit split band dispersions; (d) Iso-EB contours measured at 2 eV below EVBM. No signatures of the MBFSs can be identified in these data.
