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arXiv 1609.04706cond-mat.soft
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类Janus粒子双层晶格中一级相变的蒙特卡罗模拟

First-order phase transitions in lattice bilayers of Janus-like particles: Monte Carlo simulations

M. Borówko, A. Patrykiejew, W. Rzysko, S. Sokołowski

摘要:

研究了狭缝孔中Janus粒子的晶格模型中的一级相变。我们假设一个立方晶格的分子可以自由地改变他们的方向上的晶格网站。此外,分子可以与孔壁相互作用的取向依赖的力。所进行的计算仅限于双层的情况。我们的重点是在流体之间的竞争壁和流体与流体的相互作用。在流体-壁面相互作用与流体-流体相互作用相反的系统中形成的定向结构不同于在具有中性壁面或具有吸引流体分子的排斥部分的壁面的系统中出现的定向结构。

英文摘要:

The first-order phase transitions in the lattice model of Janus-like particles confined in slit-like pores are studied. We assume a cubic lattice with molecules that can freely change their orientation on a lattice site. Moreover, the molecules can interact with the pore walls with orientation-dependent forces. The performed calculations are limited to the cases of bilayers. Our emphasis is on the competition between the fluid-wall and fluid-fluid interactions. The oriented structures formed in the systems in which the fluid-wall interactions acting contrary to the fluid-fluid interactions differ from those appearing in the systems with neutral walls or with walls attracting the repulsive parts of fluid molecules.

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