YBa2Cu3O7-x + YSZ mixed films with enhanced critical current densities in magnetic field

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

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

YBa2Cu3O7-x + YSZ (YBCO + YSZ) mixed films were prepared on SrTiO3/MgO substrates by pulsed laser deposition (PLD) from a YBCO target with thin YSZ sector on the top of the target. In comparison with a pure YBCO film, the Jc at 77 K for mixed YBCO + YSZ thin film was enhanced from 1.46 MA/cm2 to 1.95 MA/cm2 (self-field) and from 0.09 MA/cm2 to 0.28 MA/cm2 (B∥c, B = 5 T) even when both films were prepared on the same deposition conditions. In the YSZ-added sample, the angular dependence of Jc shows a broad peak at B∥c, due to the flux pinning by c-axis correlated defects. Consistently, elongated nanorods grown in the direction parallel to c-axis were observed in cross-sectional TEM images.

Original languageEnglish
Pages (from-to)653-656
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume463-465
Issue numberSUPPL.
DOIs
Publication statusPublished - 2007 Oct 1
Externally publishedYes

Fingerprint

yttria-stabilized zirconia
critical current
Magnetic fields
current density
magnetic fields
Flux pinning
Pulsed laser deposition
Nanorods
flux pinning
nanorods
Transmission electron microscopy
pulsed laser deposition
Thin films
Defects
sectors
Substrates
transmission electron microscopy
barium copper yttrium oxide
defects
thin films

Keywords

  • Artificial pinning center
  • J
  • Vortex pinning
  • YBCO
  • YSZ doping

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

YBa2Cu3O7-x + YSZ mixed films with enhanced critical current densities in magnetic field. / Mele, Paolo; Matsumoto, K.; Horide, T.; Ichinose, A.; Mukaida, M.; Yoshida, Y.; Horii, S.

In: Physica C: Superconductivity and its Applications, Vol. 463-465, No. SUPPL., 01.10.2007, p. 653-656.

Research output: Contribution to journalArticle

Mele, P, Matsumoto, K, Horide, T, Ichinose, A, Mukaida, M, Yoshida, Y & Horii, S 2007, 'YBa2Cu3O7-x + YSZ mixed films with enhanced critical current densities in magnetic field', Physica C: Superconductivity and its Applications, vol. 463-465, no. SUPPL., pp. 653-656. https://doi.org/10.1016/j.physc.2007.02.026
Mele, Paolo ; Matsumoto, K. ; Horide, T. ; Ichinose, A. ; Mukaida, M. ; Yoshida, Y. ; Horii, S. / YBa2Cu3O7-x + YSZ mixed films with enhanced critical current densities in magnetic field. In: Physica C: Superconductivity and its Applications. 2007 ; Vol. 463-465, No. SUPPL. pp. 653-656.
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