Defect-mediated turbulence in a catalytic surface reactionC. Beta, A. S. Mikhailov, H. H. Rotermund and G. Ertl
Fritz-Haber-Institut der Max-Planck-Gesellschaft - Faradayweg 4-6 14195 Berlin, Germany
received 16 March 2006; accepted in final form 28 July 2006
published online 23 August 2006
We analyze the statistical properties of topological defects in an experimental reaction-diffusion system -the catalytic CO oxidation on Pt(110). Based on the gain and loss rates of defects, a probabilistic description of defect-mediated turbulence in this system is derived. We observe deviations from theoretical predictions for the statistics of topological defects that can be explained by the presence of short-range correlations between defects and underline the importance of correlations for defect dynamics in such systems.
05.45.-a - Nonlinear dynamics and chaos.
82.40.Np - Temporal and spatial patterns in surface reactions.
82.40.Qt - Complex chemical systems.
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