Role of Structural Fluctuation in a Surface Reaction Studied by Scanning Tunneling Microscopy: TheClean-Off Reaction on Ag(110)-()-O
- 6 June 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 90 (22), 226105
- https://doi.org/10.1103/physrevlett.90.226105
Abstract
The kinetics of the clean-off reaction of O adatoms by CO on Ag(110)-(2x1)-O is investigated by scanning tunneling microscopy. The reaction is accelerated in the lower O coverage range where AgO chains with (nx1) (n> or =4) configurations show significant structural fluctuation. Simulations based on the Ising model are used to provide a quantitative understanding of the acceleration, which originates from the dynamical formation of active O adatoms by fluctuation of AgO chains.Keywords
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