Effect of Co Substitution on Tc in YBa2Cu3-xCoxO7-y,(x=0-1)

Daisuke Shindo, Kenji Hiraga, Makoto Hirabayashi, Ayako Tokiwa, Masae Kikuchi, Yasuhiko Syono, Osamu Nakatsu, Norio Kobayashi, Yoshio Muto, Eiji Aoyagi

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39 Citations (Scopus)


The crystal structure of YBa2Cu3-xCoxO7-y(x=0-1) was investigated by X-ray and electron diffraction and the crystallographic site of Co atoms was directly determined byelectron-channelling-enhanced microanalysis. It was shown that the structure is tetragonal based on the tripled perovskite structure, and that Co atoms occupy the Cu atom sites. Electric resistivity was measured with changing Co atom content and it was shown that Tc did not decrease monotonically with increasing Co atom concentration.

Original languageEnglish
Pages (from-to)L1667-L1669
JournalJapanese Journal of Applied Physics
Issue number10 A
Publication statusPublished - 1987 Oct
Externally publishedYes

ASJC Scopus subject areas

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


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