J. Phys. IV France 7 (1997) C2-211-C2-212
Surface Atomic-XAFS for Nitrogen Atoms on CopperH. Wende1, D. Arvanitis2, M. Tischer1, R. Chauvistré1, H. Henneken1, F. May3 and K. Baberschke1
1 Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin-Dahlem Germany
2 Department of Physics, Uppsala University, Box 530, 75121 Uppsala, Sweden
3 Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14 14195 Berlin-Dahlem Germany
The presence of oscillatory structures in the atomic x-ray absorption background is reported for the first time for surface EXAFS of c(2x2)N/Cu(100) and (2x3)N/Cu(110). The experimental data for N/Cu(110) are compared to FEFF7 calculations of the oscillating atomic background µ0(E). For the two systems it is found that the AXAFS peak in the Fourier transform increases by a factor of two as the N-atom is adsorbed closer to the surface plane.
© EDP Sciences 1997