Superconductivity in modified systems based on YBa2Cu3O7-δ

Yoshiteru Maeno, Masatsune Kato, Yuji Aoki, Tsutomu Nojima, Toshizo Fujita

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


In order to study the impurity effects and the different role each of the two distinctive Cu sites plays, superconductivity in YBa2(Cu1-xMx)3O7-δ was investigated with various 3d and other elements M substituted for Cu. An orthorhombic to tetragonal phase transition is induced by M = Fe, Co and Ga. With M = Fe, it is induced at xc ≈ 0.02 at room temperature. The resistivity and magnetic susceptibility measurements support the bulk nature of superconductivity in the impurity-induced tetragonal phase.

Original languageEnglish
Pages (from-to)357-359
Number of pages3
JournalPhysica B+C
Issue number1-3
Publication statusPublished - 1987 Dec
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)


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