Markova Olga, Alberts Jonathan, Munro Edwin, Lenne Pierre-François
Institut de Biologie du Développement de Marseille, UMR7288 CNRS/Aix-Marseille Université, Campus de Luminy, 13288 Marseille cedex 9, France.
University of Washington, 620 University Rd., Friday Harbor, Washington 98250, USA.
Phys Rev E Stat Nonlin Soft Matter Phys. 2014 Aug;90(2):022301. doi: 10.1103/PhysRevE.90.022301. Epub 2014 Aug 12.
We compute the structure and kinetics of two systems of low-valence particles with three or six freely oriented bonds in two dimensions. The structure of clusters formed by trivalent particles is complex with loops and holes, while hexavalent particles self-organize into regular and compact structures. We identify the elementary structures which compose the clusters of trivalent particles. At initial stages of clustering, the clusters of trivalent particles grow with a power-law time dependence. Yet at longer times fusion and fission of clusters equilibrates and clusters form a heterogeneous phase with polydispersed sizes. These results emphasize the role of valence in the kinetics and stability of finite-size clusters.
我们计算了二维空间中具有三个或六个自由取向键的低价粒子的两个系统的结构和动力学。三价粒子形成的团簇结构复杂，有环和孔，而六价粒子则自组织成规则且紧凑的结构。我们确定了构成三价粒子团簇的基本结构。在团簇形成的初始阶段，三价粒子团簇以幂律时间依赖性增长。然而，在更长的时间里，团簇的融合和裂变达到平衡，团簇形成了具有多分散尺寸的非均匀相。这些结果强调了价态在有限尺寸团簇的动力学和稳定性中的作用。
