Oxygen-controlled-melt-growth process of filamentary (Nd 0.33Eu0.08Gd0.58)Ba2Cu 3Oy superconductors

Y. Hirata, T. Goto, T. Kakimoto, K. Watanabe

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

Partial melting of filamentary (Nd0.33Eu0.08Gd 0.58)Ba2Cu3Oy superconductors in flowing 0.1% O2+Ar (sample A) and 1% O2+Ar (sample B) under various heating conditions was examined to obtain high transport J c. The Tc values for sample A and sample B were 92.3 and 84.6 K, and maximum Jc values at 77 K and self-fields were 19,000 and 350 A/cm2, respectively. Sample A had well-aligned texture along the filament diameter as well as filament length. The field dependence of J c for sample A was measured at 77 K and magnetic fields up to 10 T by changing the angle along the filament diameter. An angular dependence of the Jc along the filament diameter was detected. By optimizing the angle, the sample showed Jc value of 420 A/cm2 at 77 K and 8 T.

Original languageEnglish
Pages (from-to)975-979
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume392-396
Issue numberPART 2
DOIs
Publication statusPublished - 2003 Oct 1
EventProceedings of the 15th International Symposium on Superconduc - Yokohama, Japan
Duration: 2002 Nov 112002 Nov 13

Keywords

  • (Nd,Eu,Gd)-Ba-Cu-O
  • Oxygen-controlled-melt-growth process
  • Superconducting filament

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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