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Journal Article

Structural precursor to adsorbate-induced reconstruction: C on Ni(100)

MPS-Authors
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Terborg,  Ralf
Fritz Haber Institute, Max Planck Society;

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Hoeft,  Jon Tobias
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Polcik,  Martin
Chemical Physics, Fritz Haber Institute, Max Planck Society;
Institute of Physics of the Academy of Science of the Czech Republic, Czech Republic;

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Lindsay,  Robert
Fritz Haber Institute, Max Planck Society;

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Schaff,  Oliver
Fritz Haber Institute, Max Planck Society;

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Bradshaw,  Alexander M.
Fritz Haber Institute, Max Planck Society;

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PhysRevB.60.10715.pdf
(Publisher version), 142KB

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Citation

Terborg, R., Hoeft, J. T., Polcik, M., Lindsay, R., Schaff, O., Bradshaw, A. M., et al. (1999). Structural precursor to adsorbate-induced reconstruction: C on Ni(100). Physical Review B, 60(15), 10715-10718. doi:10.1103/PhysRevB.60.10715.


Cite as: https://hdl.handle.net/21.11116/0000-0008-C8EE-B
Abstract
The local structure around adsorbed carbon atoms on Ni(100) has been determined at low coverage as well as in the 0.5 monolayer (2×2)p4g “clock” reconstruction by scanned energy mode photoelectron diffraction. At low coverage, there is no radial strain of the Ni atoms surrounding the adsorbed carbon, contrary to previous suggestions. None of the C-Ni near-neighbor distances are changed by reconstruction, but the Ni-Ni nearest-neighbor distance in the top layer increases significantly, showing that the adsorbate-induced compressive stress is associated with Ni-Ni, rather than Ni-C, repulsion.