Influence of Defect Particles on Configuration of a Two-Dimensionally Confined Dusty Plasma

作     者：黄峰 刘艳红 叶茂福 王龙 

作者机构：College of Science China Agricultural University Beijing 100083 Institute of Physics Chinese Academy of Sciences Beijing 100080 Department of Chemistry University of Antwerp Universiteitsplein 1 B-2610 Antwerp Belgium 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2006年第23卷第7期

页      面：1853-1856页

核心收录：

学科分类：07[理学] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：中国农业大学科研启动基金 

主　　题：COULOMB CLUSTERS CRYSTALS 

摘      要：The behaviour of defect particles in a two-dimensional （2D） confined dusty plasma system is investigated by molecular dynamics （MD） simulations. The mean square displacement （MSD） and the pair correlation function g（r） are used to characterize the structural and dynamical properties of the system. The influences of the number and the charge （mass） of the defect particles on the system configurations are simulated. All the defect particles with charges （masses） larger than the normal particles have the trend to move towards the system centre. The moving speed of the defect particles towards the centre increases with the increasing number and charge （mass） of defect particles and with the system temperature.