Superconductivity in impurity-induced tetragonal YBa2(Cu1-xFex)3O7-δ

Yoshiteru Maeno, Masatsune Kato, Yuji Aoki, Toshizo Fujita

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98 Citations (Scopus)


Lattice deformation and superconductivity in YBa2(Cu1-xFex)3O7-δ are studied in detail. An orthorhombic to tetragonal phase change is induced at xc≈0.02. A phase diagram in the temperature-concentration plane clarifies two regions of the tetragonal phase: one is, as known previously, induced mainly by the release of oxygen, and the other by the direct action of impurities. Bulk nature of superconductivity in the novel impurity-induced tetragonal phase is confirmed by magnetic susceptibility measurements.

Original languageEnglish
Pages (from-to)L1982-L1984
JournalJapanese journal of applied physics
Issue number12 A
Publication statusPublished - 1987 Dec
Externally publishedYes

ASJC Scopus subject areas

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


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