Single-grain growth, microstructure and superconducting properties of (Sm,Eu)123 superconductors with BaCuO2-x addition

A. Hu, N. Sakai, H. Zhou, M. Matsui, M. Murakami

研究成果: Article査読

24 被引用数 (Scopus)

抄録

High quality (Sm0.5, Eu0.5)Ba2Cu3O7-δ single domains were grown in air with BaCuO2-x addition. It was found that a RE-Ba substitution (RE: Sm and Eu) could be effectively suppressed by a small addition of BaCuO2-x. The 94 K superconductivity with sharp transition was obtained in the composition range of 0.16 ∼ 0.33 BaCuO2-x and (Sm0.5, Eu0.5)Ba2Cu3O7-δ in a molar ratio. At 77 K, a surface field of 0.8 T was trapped in a single-domain pellet of 3.2 cm diameter. A further addition of BaCuO2-x deteriorated the microstructure and degraded the superconducting performance.

本文言語English
ページ(範囲)33-38
ページ数6
ジャーナルSuperconductor Science and Technology
16
1
DOI
出版ステータスPublished - 2003 1 1
外部発表はい

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 凝縮系物理学
  • 金属および合金
  • 電子工学および電気工学
  • 材料化学

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