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 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Cite this
Superconductivity in (Pb/Cu)-"1222" copper oxides. / Sakai, Naomichi; Maeda, Toshihiko; Yamauchi, H.; Tanaka, Shoji.
In: Physica C: Superconductivity and its applications, Vol. 212, No. 1-2, 01.07.1993, p. 75-80.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Superconductivity in (Pb/Cu)-"1222" copper oxides
AU - Sakai, Naomichi
AU - Maeda, Toshihiko
AU - Yamauchi, H.
AU - Tanaka, Shoji
PY - 1993/7/1
Y1 - 1993/7/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0027625262&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027625262&partnerID=8YFLogxK
U2 - 10.1016/0921-4534(93)90487-B
DO - 10.1016/0921-4534(93)90487-B
M3 - Article
AN - SCOPUS:0027625262
VL - 212
SP - 75
EP - 80
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 1-2
ER -