Destabilization of Turing structures by electric fields -: art. no. 118302

被引：31
|
作者：
Schmidt, B
De Kepper, P
Müller, SC
机构：
[1] Univ Magdeburg, Inst Expt Phys, D-39106 Magdeburg, Germany
[2] Univ Bordeaux 1, Ctr Rech Paul Pascal, F-33600 Pessac, France
来源：
PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 11期
关键词：
D O I：
10.1103/PhysRevLett.90.118302
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The dynamic behavior of hexagonal Turing patterns in the chlorine dioxide-iodine-malonic acid reaction was studied in a newly developed open reactor under the influence of externally applied weak directed current up to 17.5 mA. A transition from stationary hexagonal patterns to spots moving parallel to the direction of the applied electric field could be observed. The velocity of the drift increases monotonously with the applied current. Experimental results could be qualitatively reproduced in numerical simulations with a reaction-diffusion-advection model, based on a realistic kinetic mechanism.
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页数：4
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