Incorporation of double artificial pinning centers in YBa2Cu3O7-δ films

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

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

YBa2Cu3O7-x + BaZrO3 + Y2O3 (YBCO + BaZrO3 + Y2O3) mixed films were prepared on SrTiO3/MgO substrates by pulsed-laser deposition from an YBCO + BaZrO3 target with a thin Y2O3 sector stuck on the top. The pinning properties for the double-doped YBCO + BaZrO3 + Y2O3 thin film were enhanced in comparison with a pure YBCO sample prepared in the same experimental conditions. The maximum global pinning forces FP for the double-doped sample are 12.8 GN/m3 at 77K, 46.3 GN/m3 at 65K, and 122 GN/m3 at 40K. In the double-doped sample, the angular dependence of Jc showed a broad peak at B//c due to the flux pinning by c-axis correlated defects, combined with a plateau, due to the flux pinning by isotropic pinning centres. Consistently, both BaZrO3 nanorods parallel to the c-axis and Y2O3 nanoparticles randomly dispersed inside the YBCO matrix were observed in TEM images.

Original languageEnglish
Pages (from-to)1631-1634
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume468
Issue number15-20
DOIs
Publication statusPublished - 2008 Sep 15
Externally publishedYes

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

Keywords

  • Artificial pinning center
  • BaZrO doping
  • J
  • Vortex pinning
  • YO doping
  • YBCO

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Mele, P., Matsumoto, K., Horide, T., Ichinose, A., Mukaida, M., Yoshida, Y., ... Kita, R. (2008). Incorporation of double artificial pinning centers in YBa2Cu3O7-δ films. Physica C: Superconductivity and its Applications, 468(15-20), 1631-1634. https://doi.org/10.1016/j.physc.2008.05.228

Incorporation of double artificial pinning centers in YBa2Cu3O7-δ films. / Mele, Paolo; Matsumoto, K.; Horide, T.; Ichinose, A.; Mukaida, M.; Yoshida, Y.; Horii, S.; Kita, R.

In: Physica C: Superconductivity and its Applications, Vol. 468, No. 15-20, 15.09.2008, p. 1631-1634.

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 YBa2Cu3O7-δ films', Physica C: Superconductivity and its Applications, vol. 468, no. 15-20, pp. 1631-1634. https://doi.org/10.1016/j.physc.2008.05.228
Mele, Paolo ; Matsumoto, K. ; Horide, T. ; Ichinose, A. ; Mukaida, M. ; Yoshida, Y. ; Horii, S. ; Kita, R. / Incorporation of double artificial pinning centers in YBa2Cu3O7-δ films. In: Physica C: Superconductivity and its Applications. 2008 ; Vol. 468, No. 15-20. pp. 1631-1634.
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