Superconductivity in the Tl-Nd-Sr-Cu-O and the Tl-Pb-Nd-Sr-Cu-O systems

1 March 1989

journal article
Published by American Physical Society (APS) in Physical Review B

Vol. 39 (7) , 4690-4692
https://doi.org/10.1103/physrevb.39.4690

Abstract

We report the evidence for superconductivity in the Tl-Nd-Sr-Cu-O and the Tl-Pb-Nd-Sr-Cu-O systems. The highest onset temperature is observed at 44 K in the Tl-Pb-Nd-Sr-Cu-O system. The superconductivity of the samples was confirmed by both the resistivity and ac susceptibility measurements. Introduction of PbO into the Tl-Nd-Sr-Cu-O system stabilizes the superconducting phase, as was observed in the Bi-Sr-Ca-Cu-O or the Tl-Sr-Ca-Cu-O system. The superconducting properties in the systems Tl-Pb-L-Sr-Cu-O, with L denoting lanthanide elements other than Nd are also discussed.

Keywords

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