Totsuji Hiroo, Totsuji Chieko
Graduate School of Natural Science and Technology, Okayama University, Kitaku, Okayama, Japan.
Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Jul;84(1 Pt 2):015401. doi: 10.1103/PhysRevE.84.015401. Epub 2011 Jul 14.
Low-temperature structures of Yukawa particles in systems with cylindrical symmetry are analyzed by numerical simulations. Particles are organized into well-defined thin concentric shells forming triangular lattices with defects on each shell and structural parameters are expressed by simple interpolation formulas including the limiting case of Coulomb particles. In outer shells, the local structure can be regarded as three-dimensional closest packing as in the case of the background of uniform spheres. These formulas can be directly compared with fine particle experiments in long cylindrical chambers under microgravity or colloidal suspensions in cylinders and may be useful as a basis of structural analyses in cylindrical systems.
通过数值模拟分析了具有圆柱对称性的系统中汤川粒子的低温结构。粒子被组织成定义明确的薄同心壳，在每个壳上形成带有缺陷的三角晶格，并且结构参数由简单的插值公式表示，其中包括库仑粒子的极限情况。在外层壳中，局部结构可视为均匀球体背景下的三维密堆积。这些公式可直接与微重力下长圆柱腔中的细颗粒实验或圆柱中的胶体悬浮液进行比较，并且可作为圆柱系统结构分析的基础。
