Self-diffusion in a liquid complex plasma

被引:77
|
作者
Nunomura, S [1 ]
Samsonov, D [1 ]
Zhdanov, S [1 ]
Morfill, G [1 ]
机构
[1] Max Planck Inst Extraterr Phys, D-85740 Garching, Germany
关键词
D O I
10.1103/PhysRevLett.96.015003
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Self-diffusion has been experimentally studied in a two-dimensional underdamped liquid complex (dusty) plasma. It was found that the self-diffusion coefficient D increases linearly with the temperature T: D/omega(E)a(2)=(0.019 +/- 0.007)(T/T-m-1), where T-m, omega(E), and a are the melting temperature, the Einstein frequency, and the mean particle separation, respectively. No superdiffusion was observed, whereas a subdiffusion occurred at temperatures close to melting.
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页数:4
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