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Influence of Defect Particles on Configuration of a Two-Dimensionally Confined Dusty Plasma |
| HUANG Feng1,2;LIU Yan-Hong3;YE Mao-Fu2;WANG Long2 |
| 1College of Science, China Agricultural University, Beijing 100083
2Institute of Physics, Chinese Academy of Sciences, Beijing 100080
3Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium |
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| Cite this article: |
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HUANG Feng, LIU Yan-Hong, YE Mao-Fu et al 2006 Chin. Phys. Lett. 23 1853-1856 |
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Abstract 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.
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| Keywords:
52.27.Lw
52.27.Gr
52.30.-q
52.25.Kn
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Published: 01 July 2006
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| PACS: |
52.27.Lw
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(Dusty or complex plasmas; plasma crystals)
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52.27.Gr
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(Strongly-coupled plasmas)
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52.30.-q
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(Plasma dynamics and flow)
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52.25.Kn
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(Thermodynamics of plasmas)
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