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Magnetically dependent superconducting transport in oxide heterostructures with an antiferromagnetic layer

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Abstract

The superconducting current in hybrid superconducting structures Nb/Au/Ca1−x Sr x CuO2/YBa2Cu3O7−δ with an antiferromagnetic layer is experimentally shown to have a Josephson nature, and the deviation from the sinusoidal dependence of the superconducting current on the phase difference between superconducting electrodes is about 20% of the second harmonic. These heterostructures are found to have sensitivity to an applied magnetic field that is much higher than that of conventional Josephson junctions. The experimental shape of the magnetic-field dependence of the critical current in the heterostructures differs from the usual Fraunhofer shape by oscillation with a significantly smaller period along a magnetic field.

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Authors and Affiliations

  1. Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, 125009, Russia

    Y. V. Kislinskii, K. Y. Konstantinian, G. A. Ovsyannikov, P. V. Komissinskiy, I. V. Borisenko & A. V. Shadrin

  2. Chalmers University of Technology, Gothenburg, SE-41296, Sweden

    G. A. Ovsyannikov & P. V. Komissinskiy

  3. Darmstadt University of Technology, Darmstadt, D-64287, Germany

    P. V. Komissinskiy

Authors
  1. Y. V. Kislinskii
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  2. K. Y. Konstantinian
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  3. G. A. Ovsyannikov
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  4. P. V. Komissinskiy
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  5. I. V. Borisenko
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  6. A. V. Shadrin
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Corresponding author

Correspondence to K. Y. Konstantinian.

Additional information

Original Russian Text © Y.V. Kislinskii, K.Y. Konstantinian, G.A. Ovsyannikov, P.V. Komissinskiy, I.V. Borisenko, A.V. Shadrin, 2008, published in Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2008, Vol. 133, No. 4, pp. 914–920.

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Kislinskii, Y.V., Konstantinian, K.Y., Ovsyannikov, G.A. et al. Magnetically dependent superconducting transport in oxide heterostructures with an antiferromagnetic layer. J. Exp. Theor. Phys. 106, 800–805 (2008). https://doi.org/10.1134/S1063776108040201

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  • DOI: https://doi.org/10.1134/S1063776108040201

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