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  V-doped TiO2(110): Quantitative structure determination using energy scanned photoelectron diffraction

Duncan, D., Kreikemeyer-Lorenzo, D., Primorac, E., Karslıoğlu, O., Naschitzki, M., Unterberger, W., et al. (2014). V-doped TiO2(110): Quantitative structure determination using energy scanned photoelectron diffraction. Surface Science, 630, 64-70. doi:10.1016/j.susc.2014.07.002.

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 Creators:
Duncan, D.A.1, 2, Author
Kreikemeyer-Lorenzo, Dagmar3, Author           
Primorac, Elena3, Author           
Karslıoğlu, Osman3, Author           
Naschitzki, Matthias3, Author           
Unterberger, Werner3, Author           
Kuhlenbeck, Helmut3, Author           
Woodruff, D.P.1, Author
Affiliations:
1University of Warwick, Coventry CV4 7AL, UK, ou_persistent22              
2Diamond Light Source, Harwell Campus, Didcot OX11 0DE, UK, ou_persistent22              
3Chemical Physics, Fritz Haber Institute, Max Planck Society, ou_24022              

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Free keywords: TiO2; Vanadium oxides; Surface structure
 Abstract: The surface structure of a novel vanadium–titanium dioxide epitaxial film (Ti1−xVxO2, x ~ 0.2) has been explored using V4+ 2p and Ti4+ 2p energy-scanned photoelectron diffraction (PhD). The determined structure is a rutile TiO2(110)-like surface, with V atoms substitutionally replacing some Ti atoms. The results show no evidence for significant preferential occupation by V atoms of any specific surface or sub-surface sites. LEED shows a (1 × 2) reconstruction to be present on the surface, and the PhD simulations do favour this being the dominant surface termination, although the reliability factor for simulations for a (1 × 1) termination falls just within the variance of the value for the preferred (1 × 2) structure. The V3+ and Ti3+ species were observed to occupy the same sites as the V4+ and Ti4+ species; V5+ species do not appear to occupy a single well-defined structural site.

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Language(s): eng - English
 Dates: 2014-06-042014-07-022014-07-102014-12
 Publication Status: Published in print
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.susc.2014.07.002
 Degree: -

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Title: Surface Science
  Abbreviation : Surf. Sci.
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 630 Sequence Number: - Start / End Page: 64 - 70 Identifier: Other: 0039-6028
CoNE: https://pure.mpg.de/cone/journals/resource/0039-6028