Local electron states and surface geometry of Si(111)-√3 √3Ag
- 26 January 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 58 (4), 373-376
- https://doi.org/10.1103/physrevlett.58.373
Abstract
Scanning tunneling microscopy and current-imaging spectroscopy are used to determine the local structural arrangement and stoichiometry of √3 × √3 Ag on Si(111). The nature of the local electronic structure and the spatial character of the wave functions observed on an atomic scale lead to a structure consisting of Ag trimers embedded in a Si honeycomb formed by threefold-coordinated Si atoms.Keywords
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