Effect of BaO2 and fine Gd2BaCuO7-δ addition on the superconducting properties of air-processed GdBa 2Cu3O7-δ

Caixuan Xu, Anming Hu, Naomichi Sakai, Mitsuru Izumi, Izumi Hirabayashi

研究成果: Article査読

42 被引用数 (Scopus)

抄録

Single-domain GdBa2Cu3O7-δ (Gd123) bulk superconductors were fabricated in air and studied with different BaC 2 contents and Gd2BaCuO7-δ (Gd211) initial particle sizes. The experiments showed that BaO2 addition effectively suppressed the Gd/Ba substitution and therefore enhanced superconducting properties such as Jc and Birr. An optimum addition amount is Gd123:BaO2 = 1:0.1 molar. By employing fine Gd211, Jc at low magnetic fields is further enhanced. At B = 0 and 77 K, Jc reached 86 000 A cm-2, which is a record high Jc value for melt-processed Gd123 bulk samples in air.

本文言語English
ページ(範囲)229-233
ページ数5
ジャーナルSuperconductor Science and Technology
18
3
DOI
出版ステータスPublished - 2005 3月 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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