Resonances induced by Cs adsorbates on Cu(100): Localization of image potential states
Authors:
- 13 May 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 65 (20) , 205414
Abstract
The modifications of the electronic states located in the surface region induced by a Cs adsorbate on a Cu(100) surface are studied using a wave-packet propagation method. Several states localized around the adsorbate are found and can be sorted in two categories: (i) states corresponding to strongly distorted atomic levels and (ii) states with an energy slightly below the image state continuum band bottoms. The latter are attributed to localization inside the two-dimensional image state continua induced by the short-range adsorbate potential. The possibility of observing these states by photoemission is discussed.Keywords
This publication has 28 references indexed in Scilit:
- Influence of Xe adlayer morphology and electronic structure on image-potential state lifetimes of Ru(0001)Chemical Physics, 2000
- Theory of inelastic lifetimes of low-energy electrons in metalsChemical Physics, 2000
- Control of the Dephasing of Image-Potential States by CO Adsorption on Cu(100)Physical Review Letters, 1999
- Lifetimes of Image-Potential States on Copper SurfacesPhysical Review Letters, 1998
- Time-Resolved Coherent Photoelectron Spectroscopy of Quantized Electronic States on Metal SurfacesScience, 1997
- Ultrafast dynamics of electrons in image-potential states on clean and Xe-covered Cu(111)Physical Review B, 1996
- Two-photon photoemission as a probe of electron interactions with atomically thin dielectric films on metal surfacesPhysical Review Letters, 1992
- Theory of image states at metal surfacesProgress in Surface Science, 1989
- Direct measure of surface impurity scattering by angle-resolved photoemissionPhysical Review B, 1986
- The existence and detection of Rydberg states at surfacesJournal of Physics C: Solid State Physics, 1978