Pattern formation in reaction-diffusion system in crossed electric and magnetic fields

  • S. S. Riaz
  • S. Banarjee
  • S. Kar
  • D. S. RayEmail author
Statistical and Nonlinear Physics


We consider a reaction-diffusion system in crossed electric and magnetic fields lying on the reaction plane. It is shown that a charge separation along the direction normal to the reaction plane resulting in a diffusional flux may cause a differential flow induced chemical instability and stationary pattern formation on a homogeneous steady state. This pattern is generically different from a Turing pattern modified by the crossed fields. The special role of magnetic field is emphasized. Our theoretical analysis is corroborated by numerical simulation on a reaction-diffusion system in three dimensions.


82.40.Ck Pattern formation in reactions with diffusion, flow and heat transfer 47.54.-r Pattern selection; pattern formation 05.45.-a Nonlinear dynamics and chaos 


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© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Authors and Affiliations

  1. 1.Indian Association for the Cultivation of Science, JadavpurKolkataIndia
  2. 2.Department of PhysicsIndian Institute of ScienceBangaloreIndia

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