一对磁性毛细管盘的远近
The near and far of a pair of magnetic capillary disks
摘要：
微观尺度上的控制关键取决于我们操纵不同物理场相互作用的能力。因此，微机器的创造要求我们了解如何使用多种场（如表面毛细管或电磁场）来产生可预测的行为。最近，开发了一种旋转微筏系统，其表现出静态和动态自组装[Wang et al.（2017）Sci. Adv. 3，e1602522]。这些筏采用毛细管和磁相互作用，并在一个关键的驱动频率，会突然改变从稳定的轨道模式静态组装结构。在本文中，我们解释了两个相互作用的微筏的动力学通过理论模型和实验相结合。这首先是通过分别识别轨道模式、组装结构和坍缩的主导物理来实现的。我们发现，轨道模式是由短程毛细管之间的相互作用的磁盘，而其他两个行为的解释只需要毛细管远场。最后结合这三种模型解释了一个新的微筏实验的动力学。
英文摘要：
Control on microscopic scales depends critically on our ability to manipulate interactions with different physical fields. The creation of micro-machines therefore requires us to understand how multiple fields, such as surface capillary or electro-magnetic, can be used to produce predictable behaviour. Recently, a spinning micro-raft system was developed that exhibited both static and dynamic self-assembly [Wang et al. (2017) Sci. Adv. 3, e1602522]. These rafts employed both capillary and magnetic interactions and, at a critical driving frequency, would suddenly change from stable orbital patterns to static assembled structures. In this paper, we explain the dynamics of two interacting micro-rafts through a combination of theoretical models and experiments. This is first achieved by identifying the governing physics of the orbital patterns, the assembled structures, and the collapse separately. We find that the orbital patterns are determined by the short range capillary interactions between the disks, while the explanations of the other two behaviours only require the capillary far field. Finally we combine the three models to explain the dynamics of a new micro-raft experiment.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
