Abstract
The superconductivity in (Pb/Cu)-"1222" cuprates, (Pb, Cu) (Sr, Ln)2(Ln, Ce)2Cu2Oz (Ln=Sm, Eu, Gd, Dy and Ho), has been found to be strongly dependent on the oxygen content as well as on the species of Ln ion. While the samples with Ln=Sm, Eu, Gd and Dy prepared in O2 at an ambient pressure exhibit superconductivity, those with Ln=Ho required post-annealing in O2 of a high pressure to become superconductors. It was likely that the ionic radius of Ln3+ and oxygen stoichiometry were strongly related to each other and both played important roles in the occurrence of superconductivity in the (Pb/Cu)-"1222" compounds.
| Original language | English |
|---|---|
| Pages (from-to) | 75-80 |
| Number of pages | 6 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 212 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 1993 Jul 1 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
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Cite this
Sakai, N., Maeda, T., Yamauchi, H., & Tanaka, S. (1993). Superconductivity in (Pb/Cu)-"1222" copper oxides. Physica C: Superconductivity and its applications, 212(1-2), 75-80. https://doi.org/10.1016/0921-4534(93)90487-B