Field dependence of Jc for melt textured filamentary Nd123 superconductor

Masahide Takahama, Tomoko Goto, Kazuo Watanabe

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Filamentary Nd123 superconductors were produced by solution spinning and oxygen controlled melt growth process. A transport critical current density, Jc for the filamentary Nd123 sample prepared with various conditions was examined in magnetic fields up to 10 T at 77 K. Currents were passed along the fiber axis and were always normal to the applied magnetic field. The filamentary Nd123 superconductor exhibited Jc values larger than the filamentary Y123 superconductor in high fields. An anomalous peak effect was not observed for the Jc-H curve of the Nd123 samples and Jc values were strongly dependent on the composition of the precursor and oxygenation condition. By controlling the melt growth process and post-annealing condition, high Jc values exceeding 104 A/cm2 at 77 K and O T and > 103 A/cm2 at 10 T were achieved for the filamentary Nd1.18Ba2.12Cu3.09Ox superconductor prepared in flowing 1%O2 + Ar.

Original languageEnglish
Pages (from-to)85-90
Number of pages6
JournalPhysica C: Superconductivity and its applications
Volume298
Issue number1-2
DOIs
Publication statusPublished - 1998 Mar 20

Keywords

  • Filamentary Nd123 superconductor
  • Flux pinning
  • Magnetic field
  • Transport J

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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