| Issue |
Europhys. Lett.
Volume 73, Number 6, March 2006
|
|
|---|---|---|
| Page(s) | 820 - 825 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2005-10492-4 | |
| Published online | 17 February 2006 | |
Fluctuation-induced pattern formation in a surface reaction
1
Interdisziplinäres Zentrum für Wissenschaftliches Rechnen und Institut für Angewandte Mathematik, Universität Heidelberg Im Neuenheimer Feld 294, D-69120 Heidelberg, Germany
2
Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-6, D-14195 Berlin, Germany
Received:
11
November
2005
Accepted:
31
January
2006
Spontaneous nucleation, pulse formation and propagation failure have
been observed experimentally in 
oxidation on Pt(110) at intermediate
pressures (
mbar). This phenomenon can be
reproduced with a stochastic model that includes temperature effects.
Nucleation occurs randomly due to fluctuations in the reaction processes,
whereas the subsequent damping out essentially follows the deterministic path.
Conditions for the occurence of stochastic effects in the pattern formation
during oxidation on Pt are discussed.
PACS: 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 82.40.Np – Temporal and spatial patterns in surface reactions / 89.75.-k – Complex systems
© EDP Sciences, 2006
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