TY - JOUR
T1 - Spatiotemporal period doubling during the electrodissolution of iron
AU - Hudson, J. L.
AU - Tabora, J.
AU - Krischer, K.
AU - Kevrekidis, I. G.
N1 - Funding Information:
The authors would like to thank Bill Farr, and especially M. Dellnitz for valuable discussions and K. Alexander for assistance with the image processing. This work was supported in part by the National Sci-J-1850). KK thanks the DFG for financial support through a scholarship.
PY - 1993/8/16
Y1 - 1993/8/16
N2 - We study the spatiotemporal dynamics of the potentiostatic electrodissolution of a circular iron electrode in sulfuric acid under conditions involving oscillations between active and passive states. We measure the spatially averaged dissolution rate (the current), and record spatially resolved surface patterns (the growth of a passivating film) with a video camera. As the potential is varied, the O(2) spatial symmetry of a base oscillatory state (high potentials) breaks giving rise to a period-doubled oscillation with apparent Z2⊕Zc2 spatiotemporal symmetry.
AB - We study the spatiotemporal dynamics of the potentiostatic electrodissolution of a circular iron electrode in sulfuric acid under conditions involving oscillations between active and passive states. We measure the spatially averaged dissolution rate (the current), and record spatially resolved surface patterns (the growth of a passivating film) with a video camera. As the potential is varied, the O(2) spatial symmetry of a base oscillatory state (high potentials) breaks giving rise to a period-doubled oscillation with apparent Z2⊕Zc2 spatiotemporal symmetry.
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U2 - 10.1016/0375-9601(93)90691-R
DO - 10.1016/0375-9601(93)90691-R
M3 - Article
AN - SCOPUS:0000287848
SN - 0375-9601
VL - 179
SP - 355
EP - 363
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 4-5
ER -