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

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.
Authors:
;  [1] ; ;  [2] ;  [3] ;  [4] ;  [5] ;  [6]
  1. College of Science, China Agricultural University, Beijing 100083 (China)
  2. College of Information and Electrical Engineering, China Agricultural University, Beijing 100083 (China)
  3. School of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025 (China)
  4. Department of Physics, Beijing University of Chemical Technology, Beijing 100029 (China)
  5. Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027 (China)
  6. (Germany)
Publication Date:
OSTI Identifier:
22410464
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPUTERIZED SIMULATION; CORRELATION FUNCTIONS; DEFECTS; DUSTS; MICROSTRUCTURE; MOLECULAR DYNAMICS METHOD; PLASMA; SELF-DIFFUSION; TEMPERATURE DEPENDENCE; TRAJECTORIES