A new non-cu-oxide superconductor: (sr1-xlnx)nb2o6-y (ln: La, nd, pr and ce)

Jun Akimitsu, Jiro Amano, Hiroshi Sawa, Osamu Nagase, Kazuhiro Gyoda, Manami Kogai

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


A new non-Cu superconductor (Sr1-xLnx)Nb2O6-y (Ln: La, Nd, Pr, Ce, Gd and Ho) has been found through resistivity and magnetization measurements. The highest onset transition temperature is about 12 K. Preliminary electron and X-ray diffraction experiments indicate that the crystal structure of the system is orthorhombic with a unit cell of a= 11.00 A, & = 7.68 A and c = 5.59 A, suggesting that the basic crystal structure is an oxygen-deficient CaTa2O6-type structure.

Original languageEnglish
Pages (from-to)L1155-L1156
JournalJapanese Journal of Applied Physics
Issue number7
Publication statusPublished - Jul 1991
Externally publishedYes


  • CaTaO-type structure
  • Nb-oxide superconductor

ASJC Scopus subject areas

  • General Engineering
  • General Physics and Astronomy


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