Determination of Adsorbate Geometries from Intramolecular Scattering in Deep-Core-Level X-Ray Photoemission: CO on Ni(001)
- 4 June 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 42 (23) , 1545-1548
- https://doi.org/10.1103/physrevlett.42.1545
Abstract
In angle-resolved x-ray photoemission from the C level of CO adsorbed on Ni(001), a peak in intensity with magnitude and full width at half maximum ≈ 25° is found to point along the surface normal. Single-scattering calculations for both a single CO molecule and a finite cluster verify that this peak is due to intramolecular scattering by O. The average orientation of CO is thus determined to be within 12° of normal, with an undetermined rms vibrational notion of ≲ 35°.
Keywords
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