Synthesis and superconductivity of PbBaSrY1-xCaxCu3O7

A. Tokiwa; M. Nagoshi; T. Oku; N. Kobayashi; M. Kikuchi; K. Hiraga; Y. Syono

doi:10.1016/0921-4534(90)90519-K

Synthesis and superconductivity of PbBaSrY_1-xCa_xCu₃O₇

A. Tokiwa, M. Nagoshi, T. Oku, N. Kobayashi, M. Kikuchi, K. Hiraga, Y. Syono

研究成果: Article › 査読

35 被引用数 (Scopus)

抄録

Superconducting PbBaSrY_1-xCa_xCu₃O₇ with a maximum T_c onset at 65 K was synthesized. Single-phase materials were obtained for 0 ≤ x ≤ 0.25 by sintering in a 1% O₂-N₂ gas at 750-830°C and quenching from 785°C. Superconductivity appeared for x ≥ 0.15 and T_c increased with increasing Ca content. PbBaSrY_0.7Ca_0.3O₇ was confirmed to achieve zero resistance at 37 K with about 45% bulk superconductivity. Superconductivity was considered to occur by hole introduction in CuO₂ sheets by substituting Y³⁺ with Ca²⁺, the same mechanism as in Pb₂Sr₂Y_1-xCa_xCu₃O₈.

本文言語	English
ページ（範囲）	285-290
ページ数	6
ジャーナル	Physica C: Superconductivity and its applications
巻	168
号	3-4
DOI	https://doi.org/10.1016/0921-4534(90)90519-K
出版ステータス	Published - 1990 6月 15
外部発表	はい

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
エネルギー工学および電力技術
電子工学および電気工学

文献へのアクセス

10.1016/0921-4534(90)90519-K

他のファイルとリンク

引用スタイル

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abstract = "Superconducting PbBaSrY1-xCaxCu3O7 with a maximum Tc onset at 65 K was synthesized. Single-phase materials were obtained for 0 ≤ x ≤ 0.25 by sintering in a 1% O2-N2 gas at 750-830°C and quenching from 785°C. Superconductivity appeared for x ≥ 0.15 and Tc increased with increasing Ca content. PbBaSrY0.7Ca0.3O7 was confirmed to achieve zero resistance at 37 K with about 45% bulk superconductivity. Superconductivity was considered to occur by hole introduction in CuO2 sheets by substituting Y3+ with Ca2+, the same mechanism as in Pb2Sr2Y1-xCaxCu3O8.",

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AU - Hiraga, K.

AU - Syono, Y.

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AB - Superconducting PbBaSrY1-xCaxCu3O7 with a maximum Tc onset at 65 K was synthesized. Single-phase materials were obtained for 0 ≤ x ≤ 0.25 by sintering in a 1% O2-N2 gas at 750-830°C and quenching from 785°C. Superconductivity appeared for x ≥ 0.15 and Tc increased with increasing Ca content. PbBaSrY0.7Ca0.3O7 was confirmed to achieve zero resistance at 37 K with about 45% bulk superconductivity. Superconductivity was considered to occur by hole introduction in CuO2 sheets by substituting Y3+ with Ca2+, the same mechanism as in Pb2Sr2Y1-xCaxCu3O8.

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