Matching field effect of the vortices in GdBa2Cu 3O7-δ thin film with gold nanorods

T. Horide, K. Matsumoto, A. Ichinose, Masashi Mukaida, Y. Yoshida, S. Horii

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Abstract

Critical current density (Jc) and irreversibility field (B irr) were measured for a GdBa2Cu3O 7-δ film with gold nanorods which were elongated along the c-axis of the film. The crossover from the single vortex pinning to the plastic pinning region occurred near BΦ at 10K. The 'peak effect' in the Jc-B characteristics at 50-82K and the kink in the Birr-T curve (Tirr ≤ 87.4K) were observed near BΦ(≤ 0.43T), when the magnetic fields were applied parallel to the c-axis of the film. The matching field effects have significant roles to determine the behaviours of the vortices in the REBa2Cu3O 7-δ (RE: Y, Gd, Sm, etc) films with correlated pinning centres, like nanorods, regardless of temperature.

Original languageEnglish
Article number001
Pages (from-to)303-306
Number of pages4
JournalSuperconductor Science and Technology
Volume20
Issue number4
DOIs
Publication statusPublished - Apr 1 2007

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All Science Journal Classification (ASJC) codes

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

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