Dense packing and symmetry in small clusters of microspheres
Dense packing and symmetry in small clusters of microspheres
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DOI：
10.1126/science.1086189
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发表时间：
2003-07-25
期刊：
影响因子：
56.9
通讯作者：
Pine, DJ
中科院分区：
文献类型：
--
作者：
Manoharan, VN;Elsesser, MT;Pine, DJ
当少量的胶体微球附着在液体乳液液滴的表面时，从液滴中去除液体会导致球体的堆积，从而使质量分布的二阶矩最小化。填充物的结构范围从球形二重体、三角形和四面体到在无限晶格填充物、分子或最小势能团簇中找不到的奇异多面体。乳胶系统提供了一条产生新的胶体结构的路线，并提供了一种研究不同物理约束如何影响小块物质对称性的方法。
When small numbers of colloidal microspheres are attached to the surfaces of liquid emulsion droplets, removing fluid from the droplets leads to packings of spheres that minimize the second moment of the mass distribution. The structures of the packings range from sphere doublets, triangles, and tetrahedra to exotic polyhedra not found in infinite lattice packings, molecules, or minimum-potential energy clusters. The emulsion system presents a route to produce new colloidal structures and a means to study how different physical constraints affect symmetry in small parcels of matter.