中国物理B ›› 2003, Vol. 12 ›› Issue (7): 765-770.doi: 10.1088/1009-1963/12/7/312

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Structure and phase transition of a two-dimensional dusty plasma

刘斌, 刘艳红, 陈雁萍, 杨思泽, 王龙   

  1. Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:2003-01-21 修回日期:2003-04-03 出版日期:2005-03-16 发布日期:2005-03-16
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 10205025, 10135020 and 10175013).

Structure and phase transition of a two-dimensional dusty plasma

Liu Bin (刘斌), Liu Yan-Hong (刘艳红), Chen Yan-Ping (陈雁萍), Yang Si-Ze (杨思泽), Wang Long (王龙)   

  1. Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2003-01-21 Revised:2003-04-03 Online:2005-03-16 Published:2005-03-16
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 10205025, 10135020 and 10175013).

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摘要： The structure and phase transition of a two-dimensional (2D) dusty plasma have been investigated in detail by molecular dynamics simulation. Pair correlation function, static structure factor, mean square displacement, and bond angle correlation function have been calculated to characterize the structural properties. The variation of internal energy, shear modulus, particle trajectories and structural properties with temperature has been monitored to study the phase transition of the 2D dusty plasma system. The simulation results are in favour of a two-step continuous transition for this kind of plasma.

Abstract: The structure and phase transition of a two-dimensional (2D) dusty plasma have been investigated in detail by molecular dynamics simulation. Pair correlation function, static structure factor, mean square displacement, and bond angle correlation function have been calculated to characterize the structural properties. The variation of internal energy, shear modulus, particle trajectories and structural properties with temperature has been monitored to study the phase transition of the 2D dusty plasma system. The simulation results are in favour of a two-step continuous transition for this kind of plasma.

Key words: dusty plasma, dusty plasma, phase transition, phase transition, molecular dynamics simulation, molecular dynamics simulation

中图分类号:  (Dusty or complex plasmas; plasma crystals)

  • 52.27.Lw
52.25.Kn (Thermodynamics of plasmas) 52.65.Yy (Molecular dynamics methods)