Energy and temperature dependent sticking coefficients of CO on ultrathin copper layers on Ru (001)
Kneitz S, Gemeinhardt J, Koschel H, Held G, Steinrück HP (1999)
Publication Type: Journal article, Original article
Publication year: 1999
Journal
Original Authors: Kneitz S., Gemeinhardt J., Koschel H., Held G., Steinrück H.-P.
Publisher: Elsevier
Pages Range: 27-31
DOI: 10.1016/S0039-6028(99)00167-3
Abstract
The chemisorption of CO on ultrathin copper layers on Ru(001) has been investigated using a supersonic molecular beam and temperature programmed desorption. We are comparing the adsorption kinetics of CO on clean Ru(001) with those on a pseudomorphic Cu monolayer and a fully relaxed Cu(111) multilayer (>40 layers) on Ru(001). For all three surfaces, a decrease of the initial sticking coefficient, S , with increasing beam energy was observed. For beam energies below 0.3 eV S is highest on the Cu monolayer, even though the binding energy of CO is significantly lower than on Ru(001). For higher energies S scales with the CO binding energy on the different substrates. The dependence of S of a low energy CO beam (0.09 eV) on the copper coverage is consistent with the Stranski-Krastanov growth mode of Cu on Ru(001) that is known from STM measurements. © 1999 Elsevier Science B.V. All rights reserved.
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APA:
Kneitz, S., Gemeinhardt, J., Koschel, H., Held, G., & Steinrück, H.-P. (1999). Energy and temperature dependent sticking coefficients of CO on ultrathin copper layers on Ru (001). Surface Science, 27-31. https://doi.org/10.1016/S0039-6028(99)00167-3
MLA:
Kneitz, Stefan, et al. "Energy and temperature dependent sticking coefficients of CO on ultrathin copper layers on Ru (001)." Surface Science (1999): 27-31.
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