Structural properties of 3D complex plasmas: experiments versus simulations

被引:35
作者
Klumov, B. [1 ]
Huber, P. [1 ]
Vladimirov, S. [1 ]
Thomas, H. [1 ]
Ivlev, A. [1 ]
Morfill, G. [1 ]
Fortov, V. [2 ]
Lipaev, A. [2 ]
Molotkov, V. [2 ]
机构
[1] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany
[2] Russian Acad Sci, Inst High Energy Dens, Moscow 125412, Russia
关键词
CRYSTALLIZED DUSTY PLASMA; BOND-ORIENTATIONAL ORDER; NARROW CHANNELS; 3-DIMENSIONAL STRUCTURE; LOCAL ORDER; CONFINEMENT; LIQUIDS; IMPACT;
D O I
10.1088/0741-3335/51/12/124028
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
In the paper we discuss recent observations of the three-dimensional plasma crystals created onboard the International Space Station under microgravity conditions. By using the special scanning technique and the image analysis we could retrieve 3D particle positions. We apply the bond-order parameter method to identify the different lattice types of the plasma crystals. It has been shown that observed plasma crystals contain numerous hcp and fcc clusters. Evidence of a small amount of bcc clusters is also reported. Molecular dynamics simulations of crystallization of a simple Yukawa system reproduce remarkably well all peculiarities of the local properties of observed plasma crystals.
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页数:7
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