Effects of artificial pinning centers on vortex pinning in high-temperature superconducting films

K. Matsumoto, T. Horide, P. Mele, Y. Yoshida, M. Mukaida, A. Ichinose, S. Horii

研究成果: Conference article査読

22 被引用数 (Scopus)

抄録

One-dimensional artificial pinning centers (APCs) were introduced perpendicular to the surface of the c-axis oriented YBa2Cu 3O7-δ (YBCO) films by using Y2O 3 nano-islands which were distributed on the substrates. In-field Jc of the films was remarkably enhanced by this method and reached to 0.12 MA/cm2 (77 K, B∥c, 5 T), which was 2-2.5 times higher than that of a pure YBCO film. The present films had a large Jc peak when the field was applied close to the c-axis. The results indicate that the strong APCs were introduced into the YBCO films. The vortex pinning by the present APCs is discussed based on the accommodation angle of the vortices.

本文言語English
ページ(範囲)1091-1095
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 10月 7
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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