Publications
Oxygen on an Fe monolayer on W(110): From chemisorption to oxidation
- Author(s)
- K. Freindl, E. Partyka-Jankowska, W. Karas, M. Zajac, E. Madej, N. Spiridis, M. Slezak, T. Slezak, D. Wisnios, J. Korecki
- Abstract
The adsorption of oxygen on a pseudomorphic iron monolayer deposited on a W(110) surface was studied experimentally and theoretically. Standard surface characterization methods, such as Auger electron spectroscopy and low energy electron diffraction, and specific nuclear methods, such as conversion electron Mössbauer spectroscopy (CEMS) and nuclear resonant scattering of synchrotron radiation, combined with theoretical calculations based on the density functional theory allowed us to determine the structure of the oxygen adsorbate and the electronic properties of iron atoms with different oxygen coordinations. The oxygen-(3 × 2) structure on the iron monolayer was recognized and was interpreted to be a state with oxygen chemisorbed on the non-reconstructed surface with modest electron transfer from iron to oxygen. A transition from chemisorbed oxygen to the onset of Fe-oxidation is revealed by distinct changes in the CEMS spectra.
- Organisation(s)
- Dynamics of Condensed Systems
- External organisation(s)
- Polish Academy of Sciences (PAS), AGH University of Science and Technology, European Synchrotron Radiation Facility ESRF, Jagiellonian University in Krakow
- Journal
- Surface Science
- Volume
- 617
- Pages
- 183-191
- No. of pages
- 9
- ISSN
- 0039-6028
- DOI
- https://doi.org/10.1016/j.susc.2013.07.011
- Publication date
- 11-2013
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103020 Surface physics, 103009 Solid state physics, 103018 Materials physics
- Keywords
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/0cf87ef5-e7c8-4c1c-a3a1-1327288d19e5