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arXiv 1902.08097cond-mat.soft
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形状各向异性片状粒子无序系统的结构和状态方程

Structure and equation-of-state of a disordered system of shape anisotropic patchy particles

Susanne Wagner, Gerhard Kahl

摘要:

我们提出了一个新的二维椭圆模型(即,形状各向异性)片状胶体,其中颗粒的不可穿透的核心在其共同顶点上被Kern-Frenkel型补丁装饰。使用(一)有据可查的标准重叠的未修饰的椭圆和(二)提出新的标准,如果两个粒子的补丁区域相互作用,我们进行了广泛的蒙特卡罗模拟在NPT合奏的证据。考虑椭圆形粒子的纵横比\{kappa} = 2,4,和6与两个补丁位于共同的顶点,并选择代表性的温度值,我们研究了半定量水平上出现的无序相的快照和径向分布函数和目前的状态方程的结果。

英文摘要:

We present a new two dimensional model for elliptic (i.e., shape anisotropic) patchy colloids, where the impenetrable core of the particles is decorated on its co-)vertices by Kern-Frenkel type of patches. Using (i) well-documented criteria for the overlap of the undecorated ellipses and (ii) proposing new criteria that give evidence if the patchy regions of two particles interact we perform extensive Monte Carlo simulations in the NPT ensemble. Considering elliptic particles of aspect ratios \{kappa} = 2, 4, and 6 with two patches located at the co-vertices and choosing representative values for the temperature we study on a semi-quantitative level the emerging disordered phases in terms of snapshots and radial distribution functions and present results for the equation-of-state.

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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