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Structural characterization of submonolayer C/Al(111)

Scalese, S. ; Agostino, R. G. ; Hayoz, J. ; Naumovic, D. ; Fasel, Roman ; Aebi, Philipp ; Schlapbach, Louis

In: Surface Science, 1998, vol. 395, no. 1, p. 120-129

We report on the adsorption of atomic C in submonolayer coverages on the Al(111) surface. The local order at the surface is studied for different thermal treatments by means of full-heimispherical X-ray photoelectron diffraction. Deposition at room temperature results in disordered C adsorption while an ordering process takes place after annealing above 475 K. We depict the structure of the... Plus

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    Titre
    • Structural characterization of submonolayer C/Al(111)
    Auteur
    • Scalese, S.. Institut de physique, Université de Fribourg, Switzerland
    • Agostino, R. G.. Institut de physique, Université de Fribourg, Switzerland
    • Hayoz, J.. Institut de Physique, Université de Fribourg, Switzerland
    • Naumovic, D.. Institut de Physique, Université de Fribourg, Switzerland
    • Fasel, Roman. Institut de physique, Université de Fribourg, Switzerland
    • Aebi, Philipp. Institut de Physique, Université de Neuchâtel, Switzerland
    • Schlapbach, Louis. Institut de physique, Université de Fribourg, Switzerland
    Type de document
    • Postprint
    Date de publication
    • 1998
    Identifiant OAI-PMH
    • oai:doc.rero.ch:20080408142028-FW
    Numéro de soumission
    • 20080408142028-FW
    Summary
    We report on the adsorption of atomic C in submonolayer coverages on the Al(111) surface. The local order at the surface is studied for different thermal treatments by means of full-heimispherical X-ray photoelectron diffraction. Deposition at room temperature results in disordered C adsorption while an ordering process takes place after annealing above 475 K. We depict the structure of the annealed C-rich phase. The C1s diffraction patterns are interpreted by comparison with single scattering cluster calculations. The results are discussed with respect to both previous theoretical and experimental work.