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

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3 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)S601-S606
JournalSuperconductor Science and Technology
Volume19
Issue number7
DOIs
Publication statusPublished - 2006 Jul 1

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ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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