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Statistics of avalanches in the self-organized criticality state of a Josephson junction

  • Statistical, Nonlinear, and Soft Matter Physics
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Abstract

Magnetic flux avalanches in Josephson junctions that include superconductor-insulator-superconductor (SIS) tunnel junctions and are magnetized at temperatures lower than approximately 5 K have been studied in detail. Avalanches are of stochastic character and appear when the magnetic field penetration depth λ into a junction becomes equal to the length a of the Josephson junction with a decrease in the temperature. The statistical properties of such avalanches are presented. The size distribution of the avalanches is a power law with a negative noninteger exponent about unity, indicating the self-organized criticality state. The self-organized criticality state is not observed in Josephson junctions with a superconductor-normal metal-superconductor (SNS) junction.

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Authors and Affiliations

  1. Nikolaev Institute of Inorganic Chemistry, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent’eva 3, Novosibirsk, 630090, Russia

    E. V. Matizen, V. G. Martynets & P. P. Bezverkhii

Authors
  1. E. V. Matizen
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  2. V. G. Martynets
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  3. P. P. Bezverkhii
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Correspondence to V. G. Martynets.

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Original Russian Text © E.V. Matizen, V.G. Martynets, P.P. Bezverkhii, 2010, published in Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2010, Vol. 138, No. 2, pp. 348–352.

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Matizen, E.V., Martynets, V.G. & Bezverkhii, P.P. Statistics of avalanches in the self-organized criticality state of a Josephson junction. J. Exp. Theor. Phys. 111, 309–312 (2010). https://doi.org/10.1134/S1063776110080261

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  • DOI: https://doi.org/10.1134/S1063776110080261

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