Photoemission study of the Si(111)-√3 × √3 -Pb mosaic phase: Observation of a large charge transfer
- 15 March 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 45 (11) , 6321-6324
- https://doi.org/10.1103/physrevb.45.6321
Abstract
The Pb-induced √3 × √3 mosaic phase of the Si(111) surface has been studied with Si 2p core-level and angle-resolved photoelectron spectroscopy. The results from these measurements provide evidence for a model with a 1:1 mixture of Pb and Si adatoms for the √3 × √3 mosaic phase, which was proposed in a recent scanning tunneling microscopy study. We observe quite large surface core-level shifts which are interpreted as due to a charge transfer between the different adatom dangling-bond orbitals.Keywords
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