Thermal conductivity and critical current density in high Tc Y1 - xLnxBa2Cu3O7 - y

K. Noto, K. Watanabe, H. Morita, K. Mori, M. Sasakawa, Y. Isikawa, K. Sato, T. Ishihara, E. Inukai, H. Fujimori, Y. Muto

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Temperature dependences of critical current density and thermal conductivity have been studied in several high Tc oxide superconductors (1-2-3 compounds). A Jc reversing phenomenon, in which critical current density, Jc at 4.2 K is smaller than at 77 K, was observed in some of them. The smaller Jc can be explained by the smaller quench current density expected from the very small thermal conductivity observed in these materials. Thermal conductivity turned out to be dominated by the phonon contribution.

Original languageEnglish
Pages (from-to)648-650
Number of pages3
Issue number6
Publication statusPublished - 1989 Jun


  • critical currents
  • high T superconductivity
  • stability
  • superconducting oxides
  • thermal conductivity

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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