Breakdown of order in a self-organised barrier discharge
University of Greifswald, Institute of Physics, Felix-Hausdorff Str. 6, 17489 Greifswald, Germany
Received: 2 April 2012
Received in final form: 4 June 2012
Published online: 28 August 2012
In this work, we investigate the transition of a hexagonal patterned self-organised barrier discharge into a stochastic distributed pattern during voltage reduction. The techniques of 2D Fourier transformation and, for the first time, the triple correlation function are used. Introducing measures for the angular and radial order it is possible to observe a supercritical bifurcation scenario for the decaying order. A chronological sequence of an angular and a radial breakdown of the pattern has been revealed. Possible limits of reproducibility and dependence on the frequency of the applied voltage are estimated.
Key words: Plasma Physics
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2012