Influence of Random Pinning on the Crystallization Process in Suspensions of Hard Spheres

• 作者: Sven Dorosz Tanja Schilling
• 来源期刊: 结晶过程及技术期刊(英文)
• 学科: 医学
• 关键词: NUCLEATION RANDOM PINNING CONFINEMENT Hard SPHERES
• 年，卷（期）: 2014,（2）
• 页码范围: 89-98
• 页数: 10页
• 分类号: R73

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 configureurations 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.