Influence of system temperature on the micro-structures and dynamics of dust clusters in dusty plasmas

被引：13

作者：

Song, Y. L. ^{[1
]}

He, Y. F. ^{[2
]}

Huang, F. ^{[1
]}

Liu, Y. H. ^{[3
]}

Chen, Z. Y. ^{[4
]}

Wu, L. ^{[2
]}

Yu, M. Y. ^{[5
,6
]}

机构：

[1] China Agr Univ, Coll Sci, Beijing 100083, Peoples R China

[2] China Agr Univ, Coll Informat & Elect Engn, Beijing 100083, Peoples R China

[3] Ludong Univ, Sch Phys & Optoelect Engn, Yantai 264025, Peoples R China

[4] Beijing Univ Chem Technol, Dept Phys, Beijing 100029, Peoples R China

[5] Zhejiang Univ, Inst Fus Theory & Simulat, Hangzhou 310027, Zhejiang, Peoples R China

[6] Ruhr Univ Bochum, Inst Theoret Phys 1, D-44801 Bochum, Germany

来源：

PHYSICS OF PLASMAS | 2015年 / 22卷 / 06期

基金：

中国国家自然科学基金;

关键词：

MOLECULAR-DYNAMICS; PHASE-TRANSITION; CHARGE;

D O I：

10.1063/1.4922436

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：

Influence of the system temperature on the micro-structures and dynamics of dust clusters in dusty plasmas is investigated through laboratory experiment and molecular dynamics simulation. The micro-structures, defect numbers, and pair correlation function of the dust clusters are studied for different system temperatures. The dust grains' trajectories, the mean square displacement, and the corresponding self-diffusion coefficient of the clusters are calculated for different temperatures for illustrating the phase properties of the dust clusters. The simulation results confirm that with the increase in system temperature, the micro-structures and dynamics of dust clusters are gradually changed, which qualitatively agree with experimental results. (C) 2015 AIP Publishing LLC.

引用

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