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Effects of RE2O3 (RE = Tm, Sc, Yb) addition on the superconducting properties of ErBa2Cu3Oy

  • R. Kita
  • , N. Hosoya
  • , N. Otawa
  • , S. Kawabata
  • , T. Nakamura
  • , O. Miura
  • , M. Mukaida
  • , K. Yamada
  • , A. Ichinose
  • , K. Matsumoto
  • , M. S. Horii
  • , Y. Yoshida

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We investigated the effects of added Tm2O3, Sc2O3, and Yb2O3 on the superconducting properties of sintered Er123 samples. Tm2O3 addition caused the least Tc degradation, exhibiting a Tc above 90 K even for 17 vol% addition. Samples with added Sc2O3 maintained a Tc at above 90 K up to an addition of 7.2 vol%, while Yb2O3-containing samples showed a monotonic decrease in Tc with increased vol% of added Yb2O3. Tm2O3-containing samples exhibited a slight increase in Jc(0.1 T)/Jc(0) and had constant Jc values even for 17 vol% addition. XRD and SEM results indicate that the Tm2O3 is very stable in the superconducting matrix.

    Original languageEnglish
    Pages (from-to)1157-1160
    Number of pages4
    JournalPhysica C: Superconductivity and its Applications
    Volume469
    Issue number15-20
    DOIs
    Publication statusPublished - Oct 15 2009

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering

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