Correlation between surface core levels and surface states in Si(111)-(7×7) probed by Ag adsorption
- 15 November 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 42 (14) , 9245-9247
- https://doi.org/10.1103/physrevb.42.9245
Abstract
Synchrotron-radiation photoemission is employed to examine the spectral modifications caused by Ag adsorption on Si(111)-(7×7). There is a correlation between the adatom-derived surface state at a binding energy of 0.3 eV and a surface core-level component at a binding energy 0.8 eV lower than that of the bulk core-level component; both are completely suppressed at a 1/4 monolayer Ag coverage. This result suggests that the same surface core-level component is derived from the adatoms.Keywords
This publication has 10 references indexed in Scilit:
- Phase transitions on the Ge(111) and Si(111) surfaces from core-level studiesPhysical Review B, 1990
- Core-level study of the phase transition on the Ge(111)-c(2×8) surfacePhysical Review B, 1988
- Initial Stage of Ag Condensation on Si(111)7×7Physical Review Letters, 1988
- Possibility of charge transfer between dimer atoms on Si(100)-(2×1)Physical Review B, 1988
- Core-level photoemission studies of surfaces, interfaces, and overlayersCritical Reviews in Solid State and Materials Sciences, 1988
- Core-level binding-energy shifts at surfaces and in solidsSurface Science Reports, 1987
- Origin of surface states on Si(111)(7×7)Physical Review Letters, 1986
- Surface Electronic Structure of Si (111)-(7×7) Resolved in Real SpacePhysical Review Letters, 1986
- Surface core level spectroscopy of transition metals: A new tool for the determination of their surface structureSurface Science Reports, 1985
- Structural analysis of Si(111)-7×7 by UHV-transmission electron diffraction and microscopyJournal of Vacuum Science & Technology A, 1985