Strongly enhanced irreversibility field and flux pinning force density in SmBa2Cu3Oy-coated conductors with well-aligned BaHfO3 nanorods

Shun Miura, Yutaka Yoshida, Yuji Tsuchiya, Yusuke Ichino, Satoshi Awaji, Ataru Ichinose, Kaname Matsumoto, Akira Ibi, Teruo Izumi, Masataka Iwakuma

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Abstract

A high flux pinning performance was obtained for a 3.8 vol% BaHfO3-doped SmBa2Cu3Oy superconducting film on a metallic substrate. At a temperature of 77.3 K, an irreversibility field of 16.8 T and the maximum flux pinning force density of 32.5GN/m3 in fields applied parallel to the c-axis of the film were achieved, which are the highest values reported thus far for REBa2Cu3Oy films, to our knowledge. The introduction of wellaligned BaHfO3 nanorods with a high number density into REBa2Cu3Oy films with little or no degradation of the critical temperature is an effective method for improving the flux pinning performance.

Original languageEnglish
Article number103101
JournalApplied Physics Express
Volume10
Issue number10
DOIs
Publication statusPublished - Oct 2017

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All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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