Large grain growth and superconducting properties of GdBa2Cu3O7-δ fabricated in air with BaCuO 2-x addition

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Abstract

The melt-textured growth of Gd123 single domain was studied in air via a hot-seeding melt process. Gd-Ba substitution can be effectively suppressed by adding BaCuO2-x. At 77 K, both Jc value at self-field and irreversibility field Birr showed a peak with increasing the amount of BaCuO2-x. Birr(77 K) was higher than 7 T with a nominal composition of Gd123 + 0.33BaCuO2-x in a molar ratio. A further addition of BaCuO2-x deteriorated superconducting properties. A surface field of 0.7 T was trapped in a 2.5 cm single domain pellet at 77 K.

Original languageEnglish
Pages (from-to)275-278
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume386
DOIs
Publication statusPublished - 2003 Apr 15
Externally publishedYes
EventICMC 2002 - Xi an, China
Duration: 2002 Jun 162002 Jun 20

Keywords

  • BaCuO addition
  • GdBaCuO
  • Melt processing

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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