Surface EXAFS on Low-Z Elements

  • K. Baberschke
Conference paper
Part of the Springer Series in Surface Sciences book series (SSSUR, volume 11)


Only during the past 12 months has the first surface EXAFS at the carbon and nitrogen K-edge been reported. These experiments, in conjunction with oxygen data, will be discussed. All 3 atoms were adsorbed on Cu and Ni surfaces at 1/2 monolayer coverage. Precise and systematic nearest neighbor bond lengths have been determined. These data in combination with LEED experiments gave a detailed view into the local bonding geometry and the effect of chemically induced reconstruction. Recent Sexafs experiments on hydrocarbons C2H2 and C2H4/Cu (100) yield for the first time bond distances to the Cu-atoms. Also a stretching of the C-C distance was observed. Finally we present more advanced effects in the Sexafs analysis: multiple scattering effects and the Debye-Waller factor in the Exafs amplitude.


Multiple Scattering Beating Effect Experimental Phase Shift Multiple Scatter Effect Triangle Path 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • K. Baberschke
    • 1
  1. 1.Institut für Atom-und FestkörperphysikFreie Universität BerlinBerlin 33Germany

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