Experimental evidence for deterministic chaos in electrochemical deposition
- 1 January 1990
- journal article
- Published by EDP Sciences in Journal de Physique
- Vol. 51 (21) , 2477-2487
- https://doi.org/10.1051/jphys:0199000510210247700
Abstract
We report an experimental study of the statics and dynamics of electrodeposition of zinc in an aqueous medium, in the intermediate regime between dendritic and DLA-like metallic clusters. During the growth process, periodic and nonperiodic oscillations of the voltage are recorded under constant applied current intensity. Period-doubling bifurcations are identified. Analysis of the data in terms of phase portraits, Poincaré maps and 1-D maps shows that the fractal geometry of these electrochemical deposits is the signature of a low-dimensional deterministic chaotic dynamics which displays sensitivity to initial conditions. The study of the apparently more complex dynamics recorded in the DLA limit is a very promising experimental challengeKeywords
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