Nano-islands formation in nonequilibrium reaction-diffusion systems

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Category: Nano-islands formation in reaction-diffusion systems

Published on Saturday, 22 September 2012 12:31

We study dynamics of pattern formation in systems belonging to class of reaction-Cattaneo models including persistent diffusion (memory effects of the diffusion flux). It was shown that due to the memory effects pattern selection process are realized. We have found that oscillatory behavior of the radius of the adsorbate islands is governed by finite propagation speed. It is shown that stabilization of nano-patterns in such models is possible only by nonequilibrium chemical reactions. Oscillatory dynamics of pattern formation is studied in details by numerical simulations.

V.O.Kharchenko, D.O.Kharchenko. Nanosize pattern formation in overdamped stochastic reaction-diffusion systems with interacting adsorbate, Phys.Rev. E, 86, 041143 (2012).

V.O.Kharchenko, D.O.Kharchenko, S.V.Kokhan, I.V.Vernyhora, V.V.Yanovsky. Properties of nano-islands formation in nonequilibrium reaction-diffusion systems with memory effects, Phys. Scr., 86, 055401 (2012)