Superconductivity in (Pb/Cu)-"1222" copper oxides

Naomichi Sakai; Toshihiko Maeda; H. Yamauchi; Shoji Tanaka

doi:10.1016/0921-4534(93)90487-B

Superconductivity in (Pb/Cu)-"1222" copper oxides

Naomichi Sakai, Toshihiko Maeda, H. Yamauchi, Shoji Tanaka

研究成果: Article › 査読

23 被引用数 (Scopus)

抄録

The superconductivity in (Pb/Cu)-"1222" cuprates, (Pb, Cu) (Sr, Ln)₂(Ln, Ce)₂Cu₂O_z (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.

本文言語	English
ページ（範囲）	75-80
ページ数	6
ジャーナル	Physica C: Superconductivity and its applications
巻	212
号	1-2
DOI	https://doi.org/10.1016/0921-4534(93)90487-B
出版ステータス	Published - 1993 7 1
外部発表	はい

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

文献へのアクセス

10.1016/0921-4534(93)90487-B

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引用スタイル

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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.",

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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.

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