Pattern formation in composite excitable media

M. Bär, I. G. Kevrekidis, H. H. Rotermund, G. Ertl

Research output: Contribution to journalArticlepeer-review

57 Scopus citations


The propagation of periodic reaction-diffusion waves (wave trains) on a composite catalytic surface, whose subdomains are characterized by different reaction kinetics, is observed experimentally during CO oxidation and analyzed computationally with a realistic reaction-diffusion model. Complete transmission as well as partial blocking of plane waves, creation of spirals as well as chemical turbulence due to presence of a domain boundary with curved waves are found for different parameters.

Original languageEnglish (US)
Pages (from-to)R5739-R5742
JournalPhysical Review E
Issue number6
StatePublished - 1995

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics


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