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Structural Determination of Oxygen Chemisorption-Site Geometry on W(211) by Low-Energy He+ ISS

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The Structure of Surfaces II

Part of the book series: Springer Series in ((SSSUR,volume 11))

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Abstract

The bonding-site geometry of oxygen chemisorbed on W (211) has been determined by angle-resolved, low-energy He+ ion-scattering spectroscopy (ISS) combined with LEEDIAuger analysis. The corrugated W(211) surface consists of close-packed W<111 > atoms that form the ridges of {110} microfacet sides of wide channels. From this highly unsymmetrical, open surface there is a pronounced angular dependence on the scattering amplitude of He+ with a searchlight effect in the He+/O(ads) signal. Polar and azimuthal angular dependence combined with energy and angle-resolved ISS data are consistent with the W (211) geometry and with an upper symmetrical {110} open trough-site location for O (ads).

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Author information

Authors and Affiliations

  1. Los Alamos National Laboratory, University of California, Los Alamos, NM, 87545, USA

    W. P. Ellis

  2. Sandia National Laboratories, Livermore, CA, 94550, USA

    R. Bastasz

Authors
  1. W. P. Ellis
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  2. R. Bastasz
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Editor information

Editors and Affiliations

  1. FOM-Institute for Atomic and Molecular Physics, Kruislaan 407, NL-1098 SJ, Amsterdam, The Netherlands

    Johannes Friso van der Veen

  2. Materials and Chemical Sciences Division, Lawrence Berkeley Laboratory, Berkeley, CA, 94720, USA

    Michel A. Van Hove

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© 1988 Springer-Verlag Berlin Heidelberg

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Ellis, W.P., Bastasz, R. (1988). Structural Determination of Oxygen Chemisorption-Site Geometry on W(211) by Low-Energy He+ ISS. In: van der Veen, J.F., Van Hove, M.A. (eds) The Structure of Surfaces II. Springer Series in Surface Sciences , vol 11. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-73343-7_41

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  • DOI: https://doi.org/10.1007/978-3-642-73343-7_41

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-73345-1

  • Online ISBN: 978-3-642-73343-7

  • eBook Packages: Springer Book Archive

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