High critical current density YBa₂Cu₃O₇ coating on conductive Nb-doped SrTiO₃ and Ni double-buffered {100}〈001〉 textured pure Cu tape for low-cost coated conductors without generation of any insulative oxides at interfaces

• 土井, 俊哉

  Graduate School of Energy Science, Kyoto University

• 森村, 岳雄

  Graduate School of Energy Science, Kyoto University

• 堀井, 滋

  Graduate School of Energy Science, Kyoto University

• Ichinose, Ataru

  Central Research Institute of Electric Power Industry, Yokosuka

抄録

For development of a low-cost superconducting wire operating at high-temperature, we propose a new approach using conductive rather than insulating buffer layers, combined with {100}〈001〉 textured pure Cu tape to form YBa₂Cu₃O₇ (YBCO)/Nb-doped SrTiO₃/Ni/Cu/stainless steel. The critical current density of the YBCO layer was 2.5 MA cm⁻² at 77 K in a magnetic self-field. We also confirmed that some current flowed into the Cu tape through the conductive buffer layers when the current exceeded the critical current of the YBCO layer, suggesting that the textured Cu tape worked not only as a biaxial template but also as a stabilizer layer.

収録刊行物

• Applied Physics Express

  Applied Physics Express 12 (2), 2019-02-01

  Japan Society of Applied Physics

キーワード

• General Engineering
• General Physics and Astronomy

詳細情報

• CRID: 1050845763139351296
• NII論文ID: 120006552920
• ISSN: 18820778
• HANDLE: 2433/236176
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • CiNii Articles