无规钉扎对硬球悬浮液结晶过程的影响
Influence of random pinning on the crystallization process in suspensions of hard spheres
摘要：
我们讨论了晶体形成在过饱和悬浮液中的单分散硬球的浓度随机钉扎在空间和时间。钉扎过程引入了外部长度尺度和外部时间尺度，其限制了可访问的配置数量，并最终限制了导致结晶的路径数量。我们观察到显着下降的成核率密度在特征钉扎浓度，可以直接相关的临界核的结构和动力学的形成在unpinned系统。
英文摘要：
We discuss crystal formation in supersaturated suspensions of monodisperse hard spheres with a concentration of hard spheres randomly pinned in space and time. The pinning procedure introduces an external length scale and an external time scale that restrict the accessible number of configurations and ultimately the number of pathways leading to crystallization. We observe a significant drop in the nucleation rate density at a characteristic pinning concentration that can be directly related to the structure of the critical nucleus and the dynamics of its formation in the unpinned system.
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