具有记忆效应的非平衡反应扩散系统中纳米岛形成的性质
Properties of nano-islands formation in nonequilibrium reaction-diffusion systems with memory effects
摘要：
我们研究的动力学的斑图形成的系统属于类的反应Cattaneo模型，包括持续扩散（记忆效应的扩散通量）。结果表明，由于记忆效应，实现了模式选择过程。我们发现，振荡行为的半径的吸附物岛是由有限的传播速度。结果表明，稳定的纳米图案在这样的模型是可能的，只有通过非平衡化学反应。通过数值模拟详细研究了斑图形成的振荡动力学。
英文摘要：
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 seletion 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.
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