振荡驱动的胶体二元混合物：轴向分离与横向延伸
Oscillatory driven colloidal binary mixtures: axial segregation versus laning
摘要：
使用布朗动力学的计算机模拟，我们表明，在相反的方向驱动的振荡外场的胶体的二元混合物表现出轴向偏析片垂直于驱动方向。分离效应仅在振荡频率和驱动强度的有限窗口中是稳定的，并且如果驱动力增加，则在驱动场的方向上由车道形成接管。在交叉制度中，观察到相对于驱动方向倾斜的带。可能的实验来验证轴向偏析进行了讨论。
英文摘要：
Using Brownian dynamics computer simulations we show that binary mixtures of colloids driven in opposite directions by an oscillating external field exhibit axial segregation in sheets perpendicular to the drive direction. The segregation effect is stable only in a finite window of oscillation frequencies and driving strengths and is taken over by lane formation in direction of the driving field if the driving force is increased. In the crossover regime, bands tilted relative to the drive direction are observed. Possible experiments to verify the axial segregation are discussed.
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