Superconductor with Tc = 117 K in the Bi-Pb-Sr-Ca-Cu-O system

Jun Takada; Hitoshi Kitaguchi; Toshio Egi; Kiichi Oda; Yosinari Miura; Hiromasa Mazaki; Yasunori Ikeda; Zenji Hiroi; Mikio Takano; Yoichi Tomii

doi:10.1016/0921-4534(90)90319-A

Superconductor with T_c = 117 K in the Bi-Pb-Sr-Ca-Cu-O system

Jun Takada, Hitoshi Kitaguchi, Toshio Egi, Kiichi Oda, Yosinari Miura, Hiromasa Mazaki, Yasunori Ikeda, Zenji Hiroi, Mikio Takano, Yoichi Tomii

Faculty of Engineering

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

The superconducting properties of the so-called 2223 phase in the Pb-Bi-Sr-Ca-Cu-O system have been studied as a function of composition and heat treatment. T_c = 115-117 K has been attained quite reproducibly for starting compositions of Pb/ (Bi+Pb) ≥ 0.30. An increase in the c-axis length from 37.10 Å to 37.21 Å accompanies the rise in T_c from 105 K to 117 K. We suggest that a considerable portion of Pb is located at the Sr-site as seen in Bi_2-x+yPb_xSr_2-yCu_1+y/4O_z.

Original language	English
Pages (from-to)	249-253
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	170
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(90)90319-A
Publication status	Published - Sep 15 1990

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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Superconductor with T_c = 117 K in the Bi-Pb-Sr-Ca-Cu-O system. / Takada, Jun; Kitaguchi, Hitoshi; Egi, Toshio; Oda, Kiichi; Miura, Yosinari; Mazaki, Hiromasa; Ikeda, Yasunori; Hiroi, Zenji; Takano, Mikio; Tomii, Yoichi.

In: Physica C: Superconductivity and its applications, Vol. 170, No. 3-4, 15.09.1990, p. 249-253.

Research output: Contribution to journal › Article › peer-review

@article{5f6e1533270b4ed5badfd56214ff072c,

title = "Superconductor with Tc = 117 K in the Bi-Pb-Sr-Ca-Cu-O system",

abstract = "The superconducting properties of the so-called 2223 phase in the Pb-Bi-Sr-Ca-Cu-O system have been studied as a function of composition and heat treatment. Tc = 115-117 K has been attained quite reproducibly for starting compositions of Pb/ (Bi+Pb) ≥ 0.30. An increase in the c-axis length from 37.10 {\AA} to 37.21 {\AA} accompanies the rise in Tc from 105 K to 117 K. We suggest that a considerable portion of Pb is located at the Sr-site as seen in Bi2-x+yPbxSr2-yCu1+y/4Oz.",

author = "Jun Takada and Hitoshi Kitaguchi and Toshio Egi and Kiichi Oda and Yosinari Miura and Hiromasa Mazaki and Yasunori Ikeda and Zenji Hiroi and Mikio Takano and Yoichi Tomii",

note = "Funding Information: The authors appreciatee ncouragementbsy and discussionw ith Emeritus Professor T. Takada and also help in the experimentsb y T. Unezaki, S. Kaneda and F. Shitani. This work was partly supported by a Grant-in-Aid for ScientificR esearcho n priority area {"}Chemistryo f New Superconductors{"}",

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doi = "10.1016/0921-4534(90)90319-A",

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T1 - Superconductor with Tc = 117 K in the Bi-Pb-Sr-Ca-Cu-O system

AU - Takada, Jun

AU - Kitaguchi, Hitoshi

AU - Egi, Toshio

AU - Oda, Kiichi

AU - Miura, Yosinari

AU - Mazaki, Hiromasa

AU - Ikeda, Yasunori

AU - Hiroi, Zenji

AU - Takano, Mikio

AU - Tomii, Yoichi

N1 - Funding Information: The authors appreciatee ncouragementbsy and discussionw ith Emeritus Professor T. Takada and also help in the experimentsb y T. Unezaki, S. Kaneda and F. Shitani. This work was partly supported by a Grant-in-Aid for ScientificR esearcho n priority area "Chemistryo f New Superconductors"

PY - 1990/9/15

Y1 - 1990/9/15

N2 - The superconducting properties of the so-called 2223 phase in the Pb-Bi-Sr-Ca-Cu-O system have been studied as a function of composition and heat treatment. Tc = 115-117 K has been attained quite reproducibly for starting compositions of Pb/ (Bi+Pb) ≥ 0.30. An increase in the c-axis length from 37.10 Å to 37.21 Å accompanies the rise in Tc from 105 K to 117 K. We suggest that a considerable portion of Pb is located at the Sr-site as seen in Bi2-x+yPbxSr2-yCu1+y/4Oz.

AB - The superconducting properties of the so-called 2223 phase in the Pb-Bi-Sr-Ca-Cu-O system have been studied as a function of composition and heat treatment. Tc = 115-117 K has been attained quite reproducibly for starting compositions of Pb/ (Bi+Pb) ≥ 0.30. An increase in the c-axis length from 37.10 Å to 37.21 Å accompanies the rise in Tc from 105 K to 117 K. We suggest that a considerable portion of Pb is located at the Sr-site as seen in Bi2-x+yPbxSr2-yCu1+y/4Oz.

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