Substrate scattering effects in the near-edge X-ray absorption fine structure 
of Ni(110)-p2mg(2 × 1)-CO

Pangher, Nicola; Wilde, Lutz; Haase, J.

doi:10.1016/0009-2614(96)00396-X

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Substrate scattering effects in the near-edge X-ray absorption fine structure of Ni(110)-p2mg(2 × 1)-CO

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Pangher, Nicola
Fritz Haber Institute, Max Planck Society;

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Wilde, Lutz
Fritz Haber Institute, Max Planck Society;

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Haase, J.
Fritz Haber Institute, Max Planck Society;

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Citation

Pangher, N., Wilde, L., & Haase, J. (1996). Substrate scattering effects in the near-edge X-ray absorption fine structure of Ni(110)-p2mg(2 × 1)-CO. Chemical Physics Letters, 255(4-6), 378-384. doi:10.1016/0009-2614(96)00396-X.

Cite as: https://hdl.handle.net/21.11116/0000-0009-AABF-1

Abstract

The near-edge X-ray absorption fine structure (NEXAFS) of Ni(110)-p2mg(2 × 1)-CO with titled CO molecules in short-bridge adsorption sites has been studied at the oxygen K edge. An additional structure is observed between the π and σ resonances the energy position of which is different in the 〈100〉 and 〈110〉 azimuths. It is shown that these features cannot be explained by Rydberg transitions, multi-electron excitations or vibrational effects. The analysis of the corresponding surface extended X-ray absorption fine structure (SEXAFS) suggests an assignment to SEXAFS wiggles due to backscattering from substrate atoms.