Melt processing and enhanced superconducting properties of single domain (Sm0.5Eu0.5)123 superconductors fabricated in air

A. Hu, N. Sakai, M. Murakami

研究成果: Article査読

11 被引用数 (Scopus)

抄録

High-quality single domain (Sm0.5Eu0.5)Ba2Cu3O7-δ superconductors were grown in air with a thermal gradient. We found that the substitution of Ba by rare earth (RE) elements was considerably suppressed when the growth rate is large. Enhanced superconducting properties were obtained by further controlling initial compositions and combining a post-annealing in Ar. The crystals exhibited a high Tc value of 95 K with a sharp superconducting transition, and a well-developed secondary peak effect in the Jc-B curve at 77 K. TEM observation revealed that the nano-sized chemical variation between RE and Ba provided robust flux pinning.

本文言語English
ページ(範囲)675-678
ページ数4
ジャーナルSuperconductor Science and Technology
15
5
DOI
出版ステータスPublished - 2002 5 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

フィンガープリント

「Melt processing and enhanced superconducting properties of single domain (Sm<sub>0.5</sub>Eu<sub>0.5</sub>)123 superconductors fabricated in air」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