Structure of Multi-Species Charged-Particles with Competing Interactions in a Quadratic Trap  

作　　者：刘艳红 陈宝信 王龙 

机构地区：[1]Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium [2]Institute of Physics, Chinese Academy of Sciences, 100080 Beijing [3]School of Science, Zhejiang University of Science and Technology, Hangzhou 310023

出　　处：《Chinese Physics Letters》2006年第6期1540-1543,共4页中国物理快报（英文版）

摘　　要：Multi-species charged-particles interacting with each other by a competing short-range attraction and long-range repulsion potential confined in a quadratic trap are studied with molecular dynamics simulations. It is found that particles with similar mass-to-charge ratio tend to populate a common shell, whose location depends on the particle mass-to-charge ratio, and that the greater the latter is, the closer the particles to the centre of the trap are. This rule for the ground-state configuration is independent of the total particle and species numbers in the system.Multi-species charged-particles interacting with each other by a competing short-range attraction and long-range repulsion potential confined in a quadratic trap are studied with molecular dynamics simulations. It is found that particles with similar mass-to-charge ratio tend to populate a common shell, whose location depends on the particle mass-to-charge ratio, and that the greater the latter is, the closer the particles to the centre of the trap are. This rule for the ground-state configuration is independent of the total particle and species numbers in the system.

关 键 词：PLASMA CRYSTALS PHASES SYSTEM 

分 类 号：O562[理学—原子与分子物理]