Lifetimes of image-potential states on the clean and hydrogen-covered Ni(111) surface

Authors
Link, S Sievers, J Durr, HA Eberhardt, W
Citation
S. Link et al., Lifetimes of image-potential states on the clean and hydrogen-covered Ni(111) surface, J ELEC SPEC, 114, 2001, pp. 351-355
Citations number
10
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
ISSN journal
03682048 → ACNP
Volume
114
Year of publication
2001
Pages
351 - 355
Database
ISI
SICI code
0368-2048(200103)114:<351:LOISOT>2.0.ZU;2-D
Abstract
We have investigated the population dynamics of image-potential states on t he clean and hydrogen-covered Ni(lll) surface using time-resolved two photo n photoemission spectroscopy. On clean Ni(lll) a lifetime of 7 +/-3 fs for the n = 1 state is obtained. The increasing lifetime when the surface is sa turated with hydrogen is assigned to changes in the occupied valence electr onic structure. (C) 2001 Elsevier Science B.V; All rights reserved.