Limits to the quantitative analysis of multiatom resonant photoemission: The case of c(2X2)O/Ni(100) - art. no. 121402

Authors
Nordlund, D Garnier, MG Witkowski, N Denecke, R Nilsson, A Nagasono, M Martensson, N Fohlisch, A
Citation
D. Nordlund et al., Limits to the quantitative analysis of multiatom resonant photoemission: The case of c(2X2)O/Ni(100) - art. no. 121402, PHYS REV B, 6312(12), 2001, pp. 1402
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6312
Issue
12
Year of publication
2001
Database
ISI
SICI code
0163-1829(20010315)6312:12<1402:LTTQAO>2.0.ZU;2-K
Abstract
We have investigated multiatom resonant photoemission (MARPE) on an adsorba te system c(2 x 2)O/Ni( 100). We observe a negligible MARPE enhancement (2 +/- %) of the O 1 s photoelectron intensity when the excitation energy is t uned to the Ni L-3 absorption resonance. A strong nonlinearity in our photo electron detection system is shown to produce artificial MARPE effects of u p to 140% for uncorrected spectra. The possibly dominating influence of mea surement artifacts in systems besides the studied adsorbates suggests a car tful review of the intensity of the MARPE effect and its applicability in g eneral.