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The structure of the V2O3(0001) surface : a scanned-energy mode photoelectron diffraction study
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Kröger, E. A., Sayago, D. I., Allegretti, F., Knight, M. J., Polcik, M., Unterberger, W. (Werner), Lerotholi, T. J., Hogan, K. A., Lamont, C. L. A. and Woodruff, D. P. (2007) The structure of the V2O3(0001) surface : a scanned-energy mode photoelectron diffraction study. Surface Science, Vol.601 (No.16). pp. 3350-3360. doi:10.1016/j.susc.2007.06.014 ISSN 0039-6028.
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Official URL: http://dx.doi.org/10.1016/j.susc.2007.06.014
Abstract
Scanned-energy mode photoelectron diffraction (PhD), using the O 1s and V 2p
photoemission signals, together with multiple-scattering simulations, have been used to
investigate the structure of the V2O3(0001) surface. The results support a strongly-relaxed
half-metal termination of the bulk, similar to that found in earlier studies of Al2O3(0001)
and Cr2O3(0001) surfaces based on low energy electron and surface X-ray diffraction
methods. However, the PhD investigation fails to provide definitive evidence for the
presence or absence of surface vanadyl (V=O) species associated with atop O atoms on
the surface layer of V atoms. Specifically, the best-fit structure does not include these
vanadyl species, although an alternative model with similar relaxations but including
vanadyl O atoms yields a reliability-factor within the variance of that of the best-fit
structure.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry Q Science > QC Physics |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Vanadium oxide -- Surfaces, Photoelectrons | ||||
Journal or Publication Title: | Surface Science | ||||
Publisher: | Elsevier BV | ||||
ISSN: | 0039-6028 | ||||
Official Date: | 15 August 2007 | ||||
Dates: |
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Volume: | Vol.601 | ||||
Number: | No.16 | ||||
Page Range: | pp. 3350-3360 | ||||
DOI: | 10.1016/j.susc.2007.06.014 | ||||
Status: | Peer Reviewed | ||||
Access rights to Published version: | Open Access (Creative Commons) | ||||
Funder: | Deutsche Forschungsgemeinschaft (DFG), Engineering and Physical Sciences Research Council (EPSRC) |
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