Solitary-wave phenomena in an excitable surface reaction.
Solitary-wave phenomena in an excitable surface reaction.
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可激发表面反应中的孤立波现象。
作者：
Bär;Eiswirth;Rotermund;Ertl
一个简单的反应扩散模型的CO氧化Pt（110），表现出除其他功能的双稳性和振荡，研究了在可激发的参数区域，在那里旅行孤立脉冲高O覆盖可能会形成一个否则CO覆盖的表面。如果假设小的补丁是结构上不完善的，脉冲的波分裂的影响，以及部分湮灭和孤立行为，结果后碰撞的两个脉冲，在协议与实验观察。
A simple reaction-diffusion model for the CO oxidation on Pt(110), exhibiting among other features bistability and oscillations, is studied in an excitable parameter region where traveling solitary pulses with high O coverage may be formed on an otherwise CO-covered surface. If it is assumed that small patches are structurally imperfect, effects of wave splitting of a pulse, as well as partial annihilation and solitonlike behavior, result upon collision of two pulses, in agreement with experimental observations.