Pattern formation during the oscillatory photoelectrodissolution of n-type silicon: turbulence, clusters and chimeras

We report and classify the rich variety of patterns forming spontaneously in the oxide layer during the oscillatory photoelectrodissolution of n-type doped silicon electrodes under limited illumination. Remarkably, these patterns are often comprised of several dynamical states coexisting on the elec...

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Main Authors: Konrad Schönleber, Carla Zensen, Andreas Heinrich, Katharina Krischer
Format: Article
Language:English
Published: IOP Publishing 2014-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/16/6/063024
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author Konrad Schönleber
Carla Zensen
Andreas Heinrich
Katharina Krischer
author_facet Konrad Schönleber
Carla Zensen
Andreas Heinrich
Katharina Krischer
author_sort Konrad Schönleber
collection DOAJ
description We report and classify the rich variety of patterns forming spontaneously in the oxide layer during the oscillatory photoelectrodissolution of n-type doped silicon electrodes under limited illumination. Remarkably, these patterns are often comprised of several dynamical states coexisting on the electrode, such as subharmonic phase clusters and spatio-temporal chaos, and include so-called ‘chimera states’. The experiments suggest that the subharmonic phase clusters emerge from a period doubling bifurcation that, upon further parameter changes, evolves into classical phase clusters. Experimentally the occurrence of the patterns is controlled via two coupling mechanisms: a linear global coupling by an external resistor and a nonlinear coupling imposed on the system by the limitation of the illumination.
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spelling doaj.art-16a646d5ab654034a63ce48b723ed2622023-08-08T11:26:24ZengIOP PublishingNew Journal of Physics1367-26302014-01-0116606302410.1088/1367-2630/16/6/063024Pattern formation during the oscillatory photoelectrodissolution of n-type silicon: turbulence, clusters and chimerasKonrad Schönleber0Carla Zensen1Andreas Heinrich2Katharina Krischer3Nonequilibrium Chemical Physics, Physik-Department, Technische Universität München , D-85747 Garching, GermanyNonequilibrium Chemical Physics, Physik-Department, Technische Universität München , D-85747 Garching, GermanyNonequilibrium Chemical Physics, Physik-Department, Technische Universität München , D-85747 Garching, GermanyNonequilibrium Chemical Physics, Physik-Department, Technische Universität München , D-85747 Garching, GermanyWe report and classify the rich variety of patterns forming spontaneously in the oxide layer during the oscillatory photoelectrodissolution of n-type doped silicon electrodes under limited illumination. Remarkably, these patterns are often comprised of several dynamical states coexisting on the electrode, such as subharmonic phase clusters and spatio-temporal chaos, and include so-called ‘chimera states’. The experiments suggest that the subharmonic phase clusters emerge from a period doubling bifurcation that, upon further parameter changes, evolves into classical phase clusters. Experimentally the occurrence of the patterns is controlled via two coupling mechanisms: a linear global coupling by an external resistor and a nonlinear coupling imposed on the system by the limitation of the illumination.https://doi.org/10.1088/1367-2630/16/6/063024pattern formationoscillatory mediasemiconductor electrochemistrychimera states
spellingShingle Konrad Schönleber
Carla Zensen
Andreas Heinrich
Katharina Krischer
Pattern formation during the oscillatory photoelectrodissolution of n-type silicon: turbulence, clusters and chimeras
New Journal of Physics
pattern formation
oscillatory media
semiconductor electrochemistry
chimera states
title Pattern formation during the oscillatory photoelectrodissolution of n-type silicon: turbulence, clusters and chimeras
title_full Pattern formation during the oscillatory photoelectrodissolution of n-type silicon: turbulence, clusters and chimeras
title_fullStr Pattern formation during the oscillatory photoelectrodissolution of n-type silicon: turbulence, clusters and chimeras
title_full_unstemmed Pattern formation during the oscillatory photoelectrodissolution of n-type silicon: turbulence, clusters and chimeras
title_short Pattern formation during the oscillatory photoelectrodissolution of n-type silicon: turbulence, clusters and chimeras
title_sort pattern formation during the oscillatory photoelectrodissolution of n type silicon turbulence clusters and chimeras
topic pattern formation
oscillatory media
semiconductor electrochemistry
chimera states
url https://doi.org/10.1088/1367-2630/16/6/063024
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AT andreasheinrich patternformationduringtheoscillatoryphotoelectrodissolutionofntypesiliconturbulenceclustersandchimeras
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