Three-Dimensional Structure of Mach Cones in Monolayer Complex Plasma Crystals

被引:16
|
作者
Couedel, L. [1 ]
Samsonov, D. [2 ]
Durniak, C. [2 ]
Zhdanov, S. [3 ]
Thomas, H. M. [3 ]
Morfill, G. E. [3 ]
Arnas, C. [1 ]
机构
[1] Aix Marseille Univ, CNRS, Lab PIIM, F-13397 Marseille 20, France
[2] Univ Liverpool, Dept Elect Engn & Elect, Liverpool L69 3GJ, Merseyside, England
[3] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany
基金
英国工程与自然科学研究理事会; 欧洲研究理事会;
关键词
DUSTY PLASMA; WAVES;
D O I
10.1103/PhysRevLett.109.175001
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The structure of Mach cones in a crystalline complex plasma has been studied experimentally using an intensity sensitive imaging, which resolved particle motion in three dimensions. This revealed a previously unknown out-of-plane cone structure, which appeared due to excitation of the vertical wave mode. The complex plasma consisted of micron sized particles forming a monolayer in a plasma sheath of a gas discharge. Fast particles, spontaneously moving under the monolayer, created Mach cones with multiple structures. The in-plane cone structure was due to compressional and shear lattice waves.
引用
收藏
页数:5
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