Molecular-Dynamics Simulations of Dynamic Phenomena in Complex Plasmas

被引：36

作者：

Durniak, Celine ^{[1
]}

Samsonov, Dmitry ^{[1
]}

Oxtoby, Neil P. ^{[1
]}

Ralph, Jason F. ^{[1
]}

Zhdanov, Sergey ^{[2
]}

机构：

[1] Univ Liverpool, Dept Elect Engn & Elect, Liverpool L69 3BX, Merseyside, England

[2] Max Planck Inst Extraterr Phys, D-85740 Garching, Germany

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2010年 / 38卷 / 09期

基金：

英国工程与自然科学研究理事会;

关键词：

Complex (dusty) plasma; lattice waves; molecular-dynamics (MD) simulation; particle tracking; shock wave; soliton; soliton interaction; state estimator; tsunami; DISCHARGE; CLUSTERS; DEFECTS; CRYSTAL;

D O I：

10.1109/TPS.2010.2051563

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Complex plasmas consist of micrometer-sized spheres immersed into an ordinary ion-electron plasma. They exist in solid, liquid, and gaseous states, sustain particle-mediated waves, and exhibit a range of nonlinear and dynamic effects. Here, we present a numerical study of nonlinear-wave steepening (tsunami effect), interaction of solitons, and shock-wave propagation in monolayer complex plasmas. The simulated results are found to be in a good agreement with the experiments. It was also found that the simulation using a tenth-order confinement potential produced more homogeneous lattices with fewer defects than that with the conventional parabolic potential.

引用

页码：2412 / 2417

页数：6

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