Improvement of the field-trapping capabilities of bulk Nd-Ba-Cu-O superconductors using Ba-Cu-O substrates

Motohide Matsui, Shinya Nariki, Naomichi Sakai, Kengo Iwafuchi, Masato Murakami

研究成果: Article査読

3 被引用数 (Scopus)

抄録

We used Ba-Cu-O substrates to fabricate bulk Nd-Ba-Cu-O superconductors using a top-seeded melt-growth method. There were several advantages for the use of Ba-Cu-O substrate compared to conventional substrate materials such as MgO, ZrO2, Al2O3, RE123 and RE211 (RE ≤ rare earth). The Ba-Cu-O did not react with the precursor and minimized liquid loss. Accordingly, the introduction of large-sized cracks was suppressed. We also found that Tc values were high at the bottom regions, which was ascribed to the beneficial effect of Ba-Cu-O in suppressing Nd/Ba substitution. As a result, we obtained bulk Nd-Ba-Cu-O superconductors that exhibited fairly good field-trapping capabilities, even at the bottom surfaces.

本文言語English
ページ(範囲)S601-S606
ジャーナルSuperconductor Science and Technology
19
7
DOI
出版ステータスPublished - 2006 7 1

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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