Enhanced high-field performance in PLD films fabricated by ablation of YSZ-added YBa2Cu3O7-x target

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

研究成果: Article

59 引用 (Scopus)

抜粋

YBa2Cu3O7-x+Y2O 3-stabilized ZrO2 (YBCO+YSZ) mixed films were prepared on SrTiO3/MgO substrates by pulsed-laser deposition from a YBCO target with a thin YSZ sector on top. The Jc at 77K for the mixed YBCO+YSZ thin film was enhanced. The Jc at 77K for the pure film and the mixed YBCO+YSZ thin film were 1.46 and 1.95MAcm-2 (self field) (and 0.09 and 0.28MAcm-2 (, B ≤ 5T)), respectively, even when both films were prepared using the same deposition conditions. The maximum pinning force of a doped film (77K, ) was 15.9GNm-3, which is comparable to the value reached by NbTi at 4.2K. In the YSZ-added sample, the angular dependence of Jc showed a broad peak at due to the flux pinning by the c-axis correlated defects. Elongated nanorods grown parallel to the c axis were consistently observed in the cross-sectional TEM images.

元の言語English
記事番号023
ページ(範囲)244-250
ページ数7
ジャーナルSuperconductor Science and Technology
20
発行部数3
DOI
出版物ステータスPublished - 2007 3 1
外部発表Yes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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