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

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

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number023
Pages (from-to)244-250
Number of pages7
JournalSuperconductor Science and Technology
Volume20
Issue number3
DOIs
Publication statusPublished - 2007 Mar 1
Externally publishedYes

Fingerprint

Pulsed laser deposition
Ablation
yttria-stabilized zirconia
ablation
Flux pinning
Thin films
flux pinning
thin films
Nanorods
nanorods
pulsed laser deposition
sectors
Transmission electron microscopy
Defects
transmission electron microscopy
1-dodecylpyridoxal
barium copper yttrium oxide
defects
Substrates

ASJC Scopus subject areas

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

Cite this

Enhanced high-field performance in PLD films fabricated by ablation of YSZ-added YBa2Cu3O7-x target. / Mele, Paolo; Matsumoto, K.; Horide, T.; Ichinose, A.; Mukaida, M.; Yoshida, Y.; Horii, S.

In: Superconductor Science and Technology, Vol. 20, No. 3, 023, 01.03.2007, p. 244-250.

Research output: Contribution to journalArticle

Mele, Paolo ; Matsumoto, K. ; Horide, T. ; Ichinose, A. ; Mukaida, M. ; Yoshida, Y. ; Horii, S. / Enhanced high-field performance in PLD films fabricated by ablation of YSZ-added YBa2Cu3O7-x target. In: Superconductor Science and Technology. 2007 ; Vol. 20, No. 3. pp. 244-250.
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