Magnetic instability in high-jc yiba2cu3o7 prepared by quench-melt-growth process

Kazuo Watanabe, Norio Kobayashi, Satoshi Awaji, Giyuu Kido, Shigeki Nimori, Keiichi Kimura, Kiyoshi Sawano, Yoshio Muto

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


Magnetisation measurements of quench-melt-growth-processed JC YiBa2Cu3O7 were performed in high fields of up to 23 T at 4.2 K by a sample extraction method. Many flux jumps were observed in the magnetization curve. It was demonstrated that high-rc oxide superconductors with very large Jc of 107 A/cm2 in fields at 4.2 K gave rise to magnetic instability due to the low specific heat.

Original languageEnglish
Pages (from-to)L1638-L1640
JournalJapanese journal of applied physics
Issue number9
Publication statusPublished - 1991 Sep


  • J YBaCuO
  • Magnetic instability
  • Magnetization
  • QMG

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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