Abstract
The chemically prepared H/Si(111)-(1×1) surface has been studied by k-resolved inverse-photoemission spectroscopy (KRIPES) along the two main directions (Γ¯ K¯ and Γ¯ M¯) of the surface Brillouin zone. Two conduction bands are evident at 2.6 and 4.0 eV at Γ¯ and display some dispersion. A marked asymmetry is observed in their dispersion along the M¯ ’Γ¯ M¯ direction. This asymmetry is a manifestation of the different contributions of the eigenstates associated with k∥ and -k∥ to the KRIPES cross sections.
Original language | English |
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Pages (from-to) | 1187-1192 |
Number of pages | 6 |
Journal | Physical review. B, Condensed matter |
Volume | 45 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1992 |