Normally unoccupied states on C(111) (diamond) (2×1): Support for a relaxedπ-bonded chain model
- 15 January 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 39 (2) , 1381-1384
- https://doi.org/10.1103/physrevb.39.1381
Abstract
A normally unoccupied electronic state on the reconstructed (2×1) surface of C(111) (diamond) is characterized with angle-resolved two-photon photoelectron spectroscopy. The state is seen in the bulk band gap, lying 4.8 eV above the valence-band maximum. Comparison between the measured dispersion of this band and published theoretical band-structure calculations supports a relaxed Pandey π-bonded chain model of the surface reconstruction.Keywords
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