Damasceno Pablo F, Glotzer Sharon C, Engel Michael
Applied Physics Program, University of Michigan, Ann Arbor, MI 48109, United States of America. Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA 94158, United States of America.
J Phys Condens Matter. 2017 Jun 14;29(23):234005. doi: 10.1088/1361-648X/aa6cc1. Epub 2017 Apr 12.
Quasicrystals are frequently encountered in condensed matter. They are important candidates for equilibrium phases from the atomic scale to the nanoscale. Here, we investigate the computational self-assembly of four quasicrystals in a single model system of identical particles interacting with a tunable isotropic pair potential. We reproduce a known icosahedral quasicrystal and report a decagonal quasicrystal, a dodecagonal quasicrystal, and an octagonal quasicrystal. The quasicrystals have low coordination number or occur in systems with mesoscale density variations. We also report a network gel phase.
准晶体在凝聚态物质中经常出现。从原子尺度到纳米尺度，它们都是平衡相的重要候选者。在此，我们研究了在一个由相同粒子组成的单一模型系统中，四个准晶体的计算自组装过程，这些粒子通过可调谐的各向同性对势相互作用。我们重现了一种已知的二十面体准晶体，并报告了一种十边形准晶体、一种十二边形准晶体和一种八边形准晶体。这些准晶体具有低配位数，或者出现在具有中尺度密度变化的系统中。我们还报告了一种网络凝胶相。
