平面电极上胶体的Quincke振荡
Quincke oscillations of colloids at planar electrodes
摘要：
弱导电流体中的电介质粒子在受到强电场作用时会自发旋转。平面电极附近的这种昆克旋转导致粒子平移，从而实现活性物质的物理模型。在这里，我们表明，昆克辊也可以表现出振荡动力学，粒子来回移动的一个固定的位置。我们解释如何振荡出现微米级粒子相称的非极性电解质中的场致边界层的厚度。这项工作使胶体振荡器的设计。
英文摘要：
Dielectric particles in weakly conducting fluids rotate spontaneously when subject to strong electric fields. Such Quincke rotation near a plane electrode leads to particle translation that enables physical models of active matter. Here, we show that Quincke rollers can also exhibit oscillatory dynamics, whereby particles move back and forth about a fixed location. We explain how oscillations arise for micron-scale particles commensurate with the thickness of a field-induced boundary layer in the nonpolar electrolyte. This work enables the design of colloidal oscillators.
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