Long-range ordering of methylidyne on Pt{110}(1×2)
Petersen, M. A. ; Watson, D. T. P. ; Jenkins, S. J. ; King, D. A.
College Park, Md. : American Institute of Physics (AIP)
Published 2002
College Park, Md. : American Institute of Physics (AIP)
Published 2002
| ISSN: |
1089-7690
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|---|---|
| Source: |
AIP Digital Archive
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| Topics: |
Physics
Chemistry and Pharmacology
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| Notes: |
A c(2×4) LEED pattern is observed for methylidyne (CH) chemisorbed on Pt{110}(1×2) at a saturation coverage of 0.25 ML. Density functional calculations reveal that methylidyne is preferentially adsorbed in the fcc three-fold hollow site on the {111} microfacet of the reconstructed surface. A structure for the ordered overlayer is thus proposed, and both through-metal and through-space interactions are considered as possible causes for this unexpected long-range coherence. We argue that entropic effects may be implicated. © 2002 American Institute of Physics.
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| Type of Medium: |
Electronic Resource
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| URL: |