Search Results - "Krischer, Katharina"
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1
Coexistence of synchrony and incoherence in oscillatory media under nonlinear global coupling
Published in Chaos (Woodbury, N.Y.) (01-03-2014)“…We report a novel mechanism for the formation of chimera states, a peculiar spatiotemporal pattern with coexisting synchronized and incoherent domains found in…”
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2
Between synchrony and turbulence: intricate hierarchies of coexistence patterns
Published in Nature communications (24-09-2021)“…Coupled oscillators, even identical ones, display a wide range of behaviours, among them synchrony and incoherence. The 2002 discovery of so-called chimera…”
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3
The complex Ginzburg-Landau equation: an introduction
Published in Contemporary physics (01-03-2012)“…The complex Ginzburg-Landau equation (CGLE), probably the most celebrated nonlinear equation in physics, describes generically the dynamics of oscillating,…”
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4
Pattern formation during the oscillatory photoelectrodissolution of n-type silicon: turbulence, clusters and chimeras
Published in New journal of physics (2014)“…We report and classify the rich variety of patterns forming spontaneously in the oxide layer during the oscillatory photoelectrodissolution of n-type doped…”
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5
Coupled Dynamics of Anode and Cathode in Proton‐Exchange Membrane Fuel Cells
Published in Chemphyschem (19-11-2019)“…An external reference electrode was used to monitor individually the evolution of the anodic and cathodic potentials during the stationary as well as…”
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6
Gold–rhodium nanoflowers for the plasmon enhanced ethanol electrooxidation under visible light for tuning the activity and selectivity
Published in Electrochimica acta (10-07-2022)“…[Display omitted] Direct ethanol fuel cells (DEFCs) are a promising power source, but the low selectivity to ethanol complete oxidation is still challenging…”
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7
Ellipsomicroscopic studies of the anodic oxidation of p-type silicon in fluoride containing electrolytes during current oscillations
Published in Journal of electroanalytical chemistry (Lausanne, Switzerland) (01-02-2012)“…► Oscillations during the electrodissolution of p-Si are spatially uniform. ► Determination of the oxide layer thickness gives insight into the oscillation…”
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8
High-Amplitude versus Low-Amplitude Current Oscillations during the Anodic Oxidation of p-Type Silicon in Fluoride Containing Electrolytes
Published in ChemPhysChem (Print) (27-08-2012)“…Sustained electrochemical oscillations at p‐type Si(100) in a dilute ammonium fluoride electrolyte are investigated by means of ellipsometric intensity and…”
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Superstatistics in nanoscale electrochemical systems
Published in Proceedings of the National Academy of Sciences - PNAS (06-12-2011)“…Stochastic electrochemical reaction steps on nanosized electrodes are non-Markovian when externally driven by an applied voltage. We show that, compared to the…”
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10
Electro-oxidation of p-silicon in fluoride-containing electrolyte: a physical model for the regime of negative differential resistance
Published in The European physical journal. ST, Special topics (01-04-2019)“…When Si is anodically oxidized in a fluoride containing electrolyte, an oxide layer is grown. Simultaneously, the layer is etched by the fluoride containing…”
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11
Fluctuation enhanced electrochemical reaction rates at the nanoscale
Published in Proceedings of the National Academy of Sciences - PNAS (09-03-2010)“…The electrode potential constitutes a dynamical variable whenever an electrode is resistively coupled to the electric circuit. We show that at the nanoscale,…”
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12
Collective oscillations of globally coupled bistable, nonresonant components
Published in Physical review research (23-10-2020)“…Bistable microelectrodes with an S-shaped current-voltage characteristic have recently been shown to oscillate under current control, when connected in…”
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13
How Metal/Insulator Interfaces Enable an Enhancement of the Hydrogen Evolution Reaction Kinetics
Published in ChemElectroChem (03-06-2024)“…The nanostructuring of electrodes is a common way of increasing electrocatalytic activity. Yet, the fact that the presence of insulating material in…”
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14
Spontaneous Formation of Microgroove Arrays on the Surface of p-Type Porous Silicon Induced by a Turing Instability in Electrochemical Dissolution
Published in Chemphyschem (08-06-2015)“…Self‐organization plays an imperative role in recent materials science. Highly tunable, periodic structures based on dynamic self‐organization at micrometer…”
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15
An Emergent Space for Distributed Data With Hidden Internal Order Through Manifold Learning
Published in IEEE access (2018)“…Manifold-learning techniques are routinely used in mining complex spatiotemporal data to extract useful, parsimonious data representations/parametrizations;…”
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16
Irregular subharmonic cluster patterns in an autonomous photoelectrochemical oscillator
Published in Physical review letters (15-05-2009)“…Unusual subharmonic cluster patterns are observed during the oscillatory electro-oxidation of n-Si(111) under illumination. 2D in situ imaging of the electrode…”
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17
Spontaneous formation of spatiotemporal patterns at the electrode ∣ electrolyte interface
Published in Journal of electroanalytical chemistry (Lausanne, Switzerland) (01-03-2001)“…Practically every electrochemical reaction exhibits temporal instabilities, such as bistable reaction rates or spontaneous oscillations of current or…”
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18
Distributed coupling complexity in a weakly coupled oscillatory network with associative properties
Published in New journal of physics (05-08-2013)“…We present a novel architecture of an oscillatory neural network capable of performing pattern recognition tasks. Two established strategies for obtaining…”
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19
Clustering as a prerequisite for chimera states in globally coupled systems
Published in Physical review letters (23-01-2015)“…The coexistence of coherently and incoherently oscillating parts in a system of identical oscillators with symmetrical coupling, i.e., a chimera state, is even…”
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20
Self-Organized Multifrequency Clusters in an Oscillating Electrochemical System with Strong Nonlinear Coupling
Published in Physical review letters (14-05-2021)“…We study the spatiotemporal dynamics of the oscillatory photoelectrodissolution of n-type Si in a fluoride-containing electrolyte under anodic potentials using…”
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