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arXiv 0903.3770cond-mat.softcond-mat.stat-mech
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准一维带状Colloid悬浮体的结构

Structure of Quasi-One Dimensional Ribbon Colloid Suspensions

Thomas R. Stratton, Sergey Novikov, Ream Qato, Sebastian Villarreal, Bianxiao Cui, Stuart A. Rice, Binhua Lin

摘要:

我们报告的胶体流体局限于一个准一维(q1 D)带状通道作为通道宽度和胶体密度的函数的实验研究结果。我们的研究结果证实了之前对此类系统的理论研究的主要预测。(2)即使在最高密度下,由纵向对关联函数测量的沿层的有序性也是液体的特征;(3)不同地层中的q1 D对关联函数具有各向异性,类似于在平面狭缝中硬球流体的平面内对关联函数的蒙特卡罗模拟中发现的。

英文摘要:

We report the results of an experimental study of a colloid fluid confined to a quasi-one dimensional (q1D) ribbon channel as a function of channel width and colloid density. Our findings confirm the principal predictions of previous theoretical studies of such systems. These are (1) that the density distribution of the liquid transverse to the ribbon channel exhibits stratification; (2) that even at the highest density the order along the strata, as measured by the longitudinal pair correlation function, is characteristic of a liquid; and (3) the q1D pair correlation functions in different strata exhibits anisotropic behavior, resembling that found in a Monte Carlo simulation for the in-plane pair correlation function of a hard sphere fluid in a planar slit.

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