Adsorption geometry of sulfur on Ir(110)-c(2 × 4)S
| Autor: | Jens Kuntze, Gianfranco Rovida, Andrea Atrei, Ugo Bardi, Jörg Kröger, Brunetto Cortigiani |
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| Rok vydání: | 2003 |
| Předmět: |
X-ray scattering
diffraction and reflection photoelectron diffraction surface structure morphology roughness and topography adsorption kinetics sulphur iridium Diffraction Scattering chemistry.chemical_element Surfaces and Interfaces Condensed Matter Physics Sulfur Surfaces Coatings and Films law.invention Crystallography Adsorption chemistry Transition metal law Materials Chemistry Physical chemistry Iridium Scanning tunneling microscope Superstructure (condensed matter) |
| Zdroj: | Surface Science. 539:L537-L541 |
| ISSN: | 0039-6028 |
| DOI: | 10.1016/s0039-6028(03)00796-9 |
| Popis: | We investigate the Ir(1 1 0)-c(2 × 4)S adsorbate system using X-ray photoelectron diffraction. As proposed by a previous structure model based on a scanning tunneling microscopy experiment, we find that sulfur atoms of this superstructure enter the second adsorption layer. In contrast to the existing structure model the adatoms do not occupy on-top adsorption sites above first-layer adatoms. We refine the proposed structure model by moving sulfur atoms of the second adsorption layer out of the on-top position. Our experimental results are compared with single and multiple scattering calculations. |
| Databáze: | OpenAIRE |
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