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Investigation of irradiated and annealed high-temperature superconducting films with the Umka nanotechnological complex

  • S. V. AntonenkoEmail author
  • M. A. Goryachev
  • S. M. Tolkacheva
Proceedings of the XXXIV Conference on Low-Temperature Physics “NT-34”
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Abstract

Superconducting YBa2Cu3O7 − x films were fabricated by dc magnetron sputtering. They were irradiated with 1.2-MeV He+ ions to doses of 4 × 1015, 8 × 1015, 16 × 1015, and 32 × 1015 cm−2. The irradiated films were subjected to stepwise (30 min per step) vacuum annealing at 500, 600, 700, 800, and 900°C. After vacuum annealing, the samples irradiated to doses of 4 × 1015, 8 × 1015, and 16 × 1015 cm−2 exhibited partial recovery of their critical temperature, whereas the sample with a dose of 32 × 1015 cm−2 exhibited no signs of partial recovery of T C. Investigation of the irradiated annealed samples with the Umka nanotechnological complex has revealed damaged surface regions extended to a relatively large (several tenths of a micrometer) depth.

Keywords

Critical Temperature Differential Thermal Analysis Differential Thermal Analysis Curve Partial Recovery Vacuum Annealing 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

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Copyright information

© Allerton Press, Inc. 2007

Authors and Affiliations

  • S. V. Antonenko
    • 1
    Email author
  • M. A. Goryachev
    • 1
  • S. M. Tolkacheva
    • 1
  1. 1.Moscow Engineering Physics InstituteMoscowRussia

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