Superconductivity in YBa2Cu3-yNiyO7-δ

Yoshiteru Maeno, Tsutomu Nojima, Yuji Aoki, Masatsune Kato, Kenichi Hoshino, Asao Minami, Toshizo Fujita

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87 Citations (Scopus)


Superconductivity in alloyed compounds YBa2Cu3-yNiyO7-δ has been studied in order to gain direct insights on the roles different Cu sites play in electrical conduction. Electron probe microanalysis as well as X-ray powder diffraction analysis shows that Ni is actually substituted for Cu in the oxygen-deficient perovskite compound for y at least as much as 0.27. Electrical resistivity measurements revealed that the substituted Ni does not substantially destroy the superconductivity.

Original languageEnglish
Pages (from-to)L774-L776
JournalJapanese journal of applied physics
Issue number5A
Publication statusPublished - 1987 May
Externally publishedYes

ASJC Scopus subject areas

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


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