Dynamics of zigzag destabilized solitary stripes in a dc-driven pattern-forming semiconductor gas-discharge system

被引:10
作者
Strümpel, C [1 ]
Astrov, YA [1 ]
Ammelt, E [1 ]
Purwins, HG [1 ]
机构
[1] Univ Munster, Inst Appl Phys, D-48149 Munster, Germany
来源
PHYSICAL REVIEW E | 2000年 / 61卷 / 05期
关键词
D O I
10.1103/PhysRevE.61.4899
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
Zigzag destabilization of self-organized solitary stripes was detected recently in the current density of a planar semiconductor gas discharge system. In the present work it is revealed that this instability is accompanied by the propagation of the zigzag deformation along the body of a stripe. This phenomenon is quantitatively analyzed using a high-speed image acquisition technique based on a framing camera system. The velocity of propagation has been found to increase monotonously with the global electric current, while the characteristic wavelength of the pattern shows a complicated behavior. The connection of the obtained data to available results of theoretical analysis of secondary bifurcations of solitary stripes in reaction-diffusion media is considered.
引用
收藏
页码:4899 / 4905
页数:7
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