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

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16 Citations (Scopus)

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

Fingerprint

Grain growth
Substitution reactions
air
inoculation
Air
Chemical analysis
pellets
substitutes

Keywords

  • BaCuO addition
  • GdBaCuO
  • Melt processing

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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title = "Large grain growth and superconducting properties of GdBa2Cu3O7-δ fabricated in air with BaCuO 2-x addition",
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.",
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author = "A. Hu and Naomichi Sakai and Masato Murakami",
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T1 - Large grain growth and superconducting properties of GdBa2Cu3O7-δ fabricated in air with BaCuO 2-x addition

AU - Hu, A.

AU - Sakai, Naomichi

AU - Murakami, Masato

PY - 2003/4/15

Y1 - 2003/4/15

N2 - 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.

AB - 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.

KW - BaCuO addition

KW - GdBaCuO

KW - Melt processing

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