arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1109.4801cond-mat.softcond-mat.mtrl-sci
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模板辅助胶体组装的单列扩散和动力学

Single-file diffusion and kinetics of template assisted assembly of colloids

Chandana Mondal, Surajit Sengupta

摘要:

本文报道了二维质点系在一维周期性模板上有序化动力学的计算机模拟研究。在平衡状态下,随着衬底电位的变化,得到一个重入的液-固-液相变。我们表明,晶序的域生长为$\sim t^{1/z}$,与$z \sim 4$与可能的交叉,以$z \sim 2$在后期。我们认为,$t^{1/4}$法律起源于{ \em单列}运动和湮灭的缺陷对相反的拓扑电荷沿通道创建的模板。

英文摘要:

We report computer simulation studies of the kinetics of ordering of a two dimensional system of particles on a template with a one dimensional periodic pattern. In equilibrium one obtains a re-entrant liquid-solid-liquid phase transition as the strength of the substrate potential is varied. We show that domains of crystalline order grow as $\sim t^{1/z}$, with $z \sim 4$ with a possible cross-over to $z \sim 2$ at late times. We argue that the $t^{1/4}$ law originates from {\em single-file} motion and annihilation of defect pairs of opposite topological charge along channels created by the template.

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。

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