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arXiv 1605.09718cond-mat.softcond-mat.stat-mech
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模型胶体微相形成物的理论与模拟研究进展

Recent Advances in the Theory and Simulation of Model Colloidal Microphase Formers

Yuan Zhuang, Patrick Charbonneau

摘要:

这篇简短的评论综合了我们对具有短程吸引和长程排斥(SALR)相互作用的粒子模型的平衡行为的理解。这些模型能够形成稳定的周期性微相,旨在再现具有竞争相互作用的胶体悬浮体的本质。然而,有序结构还没有在实验中获得。为了更好地理解周期性微相组装的障碍,在过去的几年中,已经取得了显着的理论和模拟进展。本文主要介绍了近年来利用液态理论和密度泛函理论以及数值模拟方法对具有SALR相互作用的模型中微相的研究进展。结合这些不同的方法提供了一个周期性的微相的描述,并给出了周围的无序制度的丰富的现象学的见解。另外三个正在进行的研究方向与SALR相互作用模型的热力学。

英文摘要:

This mini-review synthesizes our understanding of the equilibrium behavior of particle models with short-range attractive and long-range repulsive (SALR) interactions. These models, which can form stable periodic microphases, aim to reproduce the essence of colloidal suspensions with competing interactions. Ordered structures, however, have yet to be obtained in experiments. In order to better understand the hurdles to periodic microphase assembly, marked theoretical and simulation advances have been made over the last few years. Here, we present recent progress in the study of microphases in models with SALR interactions using liquid-state theory and density-functional theory as well as numerical simulations. Combining these various approaches provides a description of periodic microphases, and give insights into the rich phenomenology of the surrounding disordered regime. Three additional ongoing research directions in the thermodynamics of models with SALR interactions are also presented.

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