Atom-resolved studies of the reaction betweenS and O on Ni(110)
- 14 December 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 69 (24), 3523-3526
- https://doi.org/10.1103/physrevlett.69.3523
Abstract
The reaction between S and preabsorbed O on Ni(110) has been studied at the atomic level by means of scanning tunneling microscopy (STM). During the reaction, the initial flat (2×1)O structure is replaced by an intermediate rough surface with many small islands and troughs, all covered with a c(2×2)S overlayer. Most surprisingly, this metastable phase converts into the thermodynamically stable (4×1)S reconstructed phase. A new mechanism to activate a surface at the atomic level is suggested.
Keywords
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