Flux pinning in melt-grown NdBa2Cu3Oy and SmBa2Cu3Oy superconductors

Masato Murakami, Sang Im Yoo, Takamitsu Higuchi, Naomichi Sakai, Jurgen Weltz, Naoki Koshizuka, Shoji Tanaka

研究成果: Article査読

410 被引用数 (Scopus)

抄録

REBa2Cu3Oy superconductors with rare earth (RE) ions with large radii (RE: La, Nd, Sm) exhibit relatively low Tc due to the presence of RE-Ba solid solution. We have found that this solid solution can be suppressed if these superconductors are melt processed in a reduced oxygen atmosphere. We have also found that critical current densities of these superconductors are higher than those of melt processed YBa2Cu3Oy with fine Y2BaCuO5 inclusions in a high field region. The irreversibility line was also shifted toward the higher H-T region. We believe that flux pinning in these superconductors is ascribable to a finely distributed RE(Ba1–x, REx)2Cu3Oy phase in a good superconductive matrix.

本文言語English
ページ(範囲)L715-L717
ジャーナルJapanese Journal of Applied Physics
33
5
DOI
出版ステータスPublished - 1994 5月
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

フィンガープリント

「Flux pinning in melt-grown NdBa2Cu3Oy and SmBa2Cu3Oy superconductors」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル