Surface Structure of N/Pd(100)-c(2×2) Determined by Tensor Low Energy Electron Diffraction Analysis

  • Kayama Tomoyuki
    Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo–ku, Tokyo 113–0033, Japan
  • Hamamatsu Hiroshi
    Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo–ku, Tokyo 113–0033, Japan
  • Yokoyama Toshihiko
    Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo–ku, Tokyo 113–0033, Japan
  • Ohta Toshiaki
    Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo–ku, Tokyo 113–0033, Japan

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タイトル別名
  • Surface Structure of N/Pd(100)-c(2*2) Determined by Tensor Low Energy Electron Diffraction Analysis.
  • Surface Structure of N Pd 100 c 2 2 Det

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The surface structure of N/Pd(100)-c(2×2) was investigated by means of the tensor low energy electron diffraction I-V analysis. The N atom was found to adsorb at the fourfold hollow site facing downward at a distance of 0.13±0.07 Å with respect to the first Pd layer. A slight buckling of the second Pd layer was also noticed, and the buckled distance was estimated to be 0.08±0.07 Å. The N atom is consequently coordinated by one second-layer Pd atom with the N-Pd distance of 2.02×0.07 Å as well as four first-layer Pd atoms with the N-Pd distance of 1.96±0.02 Å. Fivefold coordination observed in the present system is similar to the case of N/Ni(100)-p4g(2×2), although no reconstruction takes place on Pd(100).

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