Effect of low temperature annealing on doping level and superconducting properties for IBAD/PLD-YBCO coated conductor

J. Y. Kato, N. Chikumoto, N. Sakai, Y. Iijima, K. Kakimoto, T. Saitoh, T. Watanabe, Y. Yamada, S. Tajima

研究成果: Conference article査読

6 被引用数 (Scopus)

抄録

The effect of low temperature annealing on the superconducting properties of PLD-YBCO tape has been investigated with varying atmosphere. The T c of the as-prepared sample is 88.5 K, for the sample post-annealed at 200 °C in Ar atmosphere showed 91.5 K, indicating Tc is sensitive to low temperature annealing. In spite of the higher Tc the Jc and μ0Hirr for the Ar-annealed sample were lower than those for the as-prepared sample. This indicates that the as-prepared PLD-YBCO tape is in the carrier overdoped state. It was found that re-annealing in which the sample was slowly cooled from 450 °C in pure oxygen atmosphere could restore the Jc-degradation, demonstrating that oxygen absorption-release occurred reversely.

本文言語English
ページ(範囲)1113-1117
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
426-431
II
DOI
出版ステータスPublished - 2005
外部発表はい
イベントProceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity -
継続期間: 2004 11月 232004 11月 25

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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