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Updated: Aug 10, 2026

Spatial Separation of Molecular Conformers and Clusters
Published on: January 9, 2014
Spiral breakup induced by an electric current in a Belousov-Zhabotinsky medium
J. J. Taboada1, A. P. Munuzuri, V. Perez-Munuzuri
1Group of Nonlinear Physics, Faculty of Physics, University of Santiago de Compostela, 15706 Santiago de Compostela, Spain.
Abstract:
Sprial breakup in the Belousov-Zhabotinsky reaction has been observed under the influence of an externally applied alternating electric current. The dynamic mechanism of this breakup is explained in the framework of this reaction. The dependence of the critical electric current amplitude on the period of the wave and on the excitability of the medium is analyzed. Spiral breakup is shown to provide a limit of validity of electric-field-induced drift of vortices in excitable media. Experimental results are complemented with numerical simulations provided by two- and three-variable Oregonator models.
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