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Detection of the proximity effect in Au/YBCO bilayers at 77 K with the aid of a low-temperature scanning tunneling microscope

  • Condensed Matter
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Abstract

The characteristic features of the conductance of a tunneling contact, formed by a microscope tip and an Au/YBCO sandwich, are investigated with the aid of a scanning tunneling microscope. It is shown that there exist three types of dependences of the conductance of the structure on the applied voltage, which are distinguished by the position of the characteristic features on the voltage axis. It is established that this difference is due to the local characteristics of the proximity effect in gold films on a high-T c superconductor surface. It is concluded that the transmittance of the YBCO/Au boundary is spatially strongly nonuniform.

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Authors and Affiliations

  1. Department of Physics, Moscow State University, 119899, Moscow, Russia

    V. V. Khanin, D. V. Shuvaev, O. V. Snigirev, E. S. Soldatov, A. S. Trifonov & I. I. Vengrus

  2. M. V. Lomonosov Scientific-Research Instititute of Nuclear Physics, Moscow State University, 119899, Moscow, Russia

    M. Yu. Kupriyanov

  3. Scientific-Research Center for Technological Lasers, Russian Academy of Sciences, 117971, Moscow, Russia

    G. Yu. Shubnyi & A. N. Zherikhin

Authors
  1. V. V. Khanin
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  2. D. V. Shuvaev
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  3. O. V. Snigirev
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  4. E. S. Soldatov
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  5. A. S. Trifonov
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  6. I. I. Vengrus
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  7. M. Yu. Kupriyanov
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  8. G. Yu. Shubnyi
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  9. A. N. Zherikhin
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Additional information

Pis’ma Zh. Éksp. Teor. Fiz. 63, No. 12, 984–988 (25 June 1996)

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Khanin, V.V., Shuvaev, D.V., Snigirev, O.V. et al. Detection of the proximity effect in Au/YBCO bilayers at 77 K with the aid of a low-temperature scanning tunneling microscope. Jetp Lett. 63, 1041–1046 (1996). https://doi.org/10.1134/1.567116

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  • DOI: https://doi.org/10.1134/1.567116

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