Incorporation of double artificial pinning centers in YBa 2Cu3O7-d films

P. Mele, K. Matsumoto, T. Horide, A. Ichinose, Masashi Mukaida, Y. Yoshida, S. Horii, R. Kita

Research output: Contribution to journalArticle

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Abstract

YBa2Cu3O7-x+BaZrO3+Y 2O3 (YBCO+BaZrO3+Y2O3) mixed films were prepared on SrTiO3/MgO substrates by pulsed-laser deposition, with an YBCO+BaZrO3 target with a thin Y 2O3 sector stuck on the top. The pinning properties for the double-doped YBCO+BaZrO3+Y2O3 thin film were enhanced in comparison with those of a pure YBCO sample prepared in the same experimental conditions. The maximum global pinning forces Fp for the double-doped sample are 12.8GN m-3 near 3 T at 77 K, 46.3 GN m-3 near 4 T at 65 K, and 122 GN m-3 near 9 T at 40 K. In the double-doped sample the angular dependence of Jc showed a broad peak at , due to the flux pinning by c-axis correlated defects, combined with a plateau, due to the flux pinning by isotropic pinning centers. Both BaZrO 3 nanorods parallel to the c-axis and Y2O3 nanoparticles randomly dispersed inside the YBCO matrix were consistently observed in the cross sectional transmission electron microscopy images.

Original languageEnglish
Article number015019
JournalSuperconductor Science and Technology
Volume21
Issue number1
DOIs
Publication statusPublished - Jan 1 2008

Fingerprint

Flux pinning
flux pinning
Pulsed laser deposition
Nanorods
Nanoparticles
Transmission electron microscopy
Thin films
Defects
nanorods
pulsed laser deposition
plateaus
Substrates
sectors
nanoparticles
transmission electron microscopy
defects
matrices
thin films
barium copper yttrium oxide
strontium titanium oxide

All Science Journal Classification (ASJC) codes

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

Cite this

Incorporation of double artificial pinning centers in YBa 2Cu3O7-d films. / Mele, P.; Matsumoto, K.; Horide, T.; Ichinose, A.; Mukaida, Masashi; Yoshida, Y.; Horii, S.; Kita, R.

In: Superconductor Science and Technology, Vol. 21, No. 1, 015019, 01.01.2008.

Research output: Contribution to journalArticle

Mele, P, Matsumoto, K, Horide, T, Ichinose, A, Mukaida, M, Yoshida, Y, Horii, S & Kita, R 2008, 'Incorporation of double artificial pinning centers in YBa 2Cu3O7-d films', Superconductor Science and Technology, vol. 21, no. 1, 015019. https://doi.org/10.1088/0953-2048/21/01/015019
Mele, P. ; Matsumoto, K. ; Horide, T. ; Ichinose, A. ; Mukaida, Masashi ; Yoshida, Y. ; Horii, S. ; Kita, R. / Incorporation of double artificial pinning centers in YBa 2Cu3O7-d films. In: Superconductor Science and Technology. 2008 ; Vol. 21, No. 1.
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