Nunes André S, Araújo Nuno A M, Telo da Gama Margarida M
Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, P-1749-016 Lisboa, Portugal and Centro de Física Teórica e Computacional, Universidade de Lisboa, P-1749-016 Lisboa, Portugal.
J Chem Phys. 2016 Jan 21;144(3):034902. doi: 10.1063/1.4939951.
We study the formation of bands of colloidal particles driven by periodic external fields. Using Brownian dynamics, we determine the dependence of the band width on the strength of the particle interactions and on the intensity and periodicity of the field. We also investigate the switching (field-on) dynamics and the relaxation times as a function of the system parameters. The observed scaling relations were analyzed using a simple dynamic density-functional theory of fluids.
我们研究了由周期性外部场驱动的胶体颗粒带的形成。利用布朗动力学，我们确定了带宽度与颗粒相互作用强度、场强和场的周期性之间的依赖关系。我们还研究了开关（场开启）动力学以及作为系统参数函数的弛豫时间。使用简单的流体动态密度泛函理论分析了观察到的标度关系。
