Possibility of charge transfer between dimer atoms on Si(100)-(2×1)
- 15 February 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 37 (6), 3124-3127
- https://doi.org/10.1103/physrevb.37.3124
Abstract
A precision determination of the number of dimer atoms on the Si(100)-(2×1) surface which contribute to the 2p core-level shift as measured by high-resolution photoemission is possible with an in situ comparison with Si(111)-(7×7). By correlating distinct features of the Si(111)-(7×7) spectrum with the known structural features of the (7×7) surface, the number of surface atoms which contribute to the Si(100)-(2×1) 2p core shift is 0.92±0.07 monolayers. Implications regarding the symmetry of the valence charge distribution about the dimers are addressed.Keywords
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