论文标题
具有强非线性耦合的振荡电化学系统中的自组织多频簇
Self-organized Multi-Frequency Clusters in an Oscillating Electrochemical System with Strong Nonlinear Coupling
论文作者
论文摘要
我们研究了使用原位椭圆计量学成像在阳极电位下，在含氟化物的电解质中N型Si在含氟化物的电解质中N型Si的振荡光电溶解的时空动力学。当降低照明强度逐步时，我们依次观察到均匀的振荡，调制振幅簇以及多频簇的共存，即具有不同频率的区域，具有固定域。我们认为，由于适应性，非线性和非局部耦合，多频簇出现了，类似于在神经动力学的背景下发现的群集。
We study the spatio-temporal dynamics of the oscillatory photo-electrodissolution of n-type Si in a fluoride-containing electrolyte under anodic potentials using in-situ ellipsometric imaging. When lowering the illumination intensity step-wise, we successively observe uniform oscillations, modulated amplitude clusters, and the coexistence of multi-frequency clusters i.e., regions with different frequencies, with a stationary domain. We argue that the multi-frequency clusters emerge due to an adaptive, nonlinear, and nonlocal coupling, similar to those found in the context of neural dynamics.
