Depinning and evolution of charged dust particles in the presence of external force

被引：0
|
作者：
Xie, Yixin [1 ]
Wang, Youmei [1 ]
Cao, Haixiang [1 ]
机构：
[1] Hangzhou Dianzi Univ, Sch Sci, Dept Phys, Hangzhou 310016, Peoples R China
来源：
PHYSICS LETTERS A | 2024年 / 526卷
基金：
中国国家自然科学基金;
关键词：
Dusty plasma; 2D molecular dynamics; External force; Pin; VORTEX; DYNAMICS;
D O I：
10.1016/j.physleta.2024.129961
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We consider the evolution of massive charged dust particles initially lattice-like pinned at randomly distributed pin sites in the presence of an external force. Two-dimensional molecular dynamics simulation shows that three states, namely the pinned, plastic flow, and moving-lattice state can appear as the force is increased. It is also found that the pinned state does not appear at high dust kinetic temperatures. Moreover, transition from a moving lattice state to a plastic-flow state can occur under sufficiently large external force.
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页数：7
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