SUPERCONDUCTOR WITH TC = 117-K IN THE BI-PB-SR-CA-CU-O SYSTEM

被引：23

作者：

TAKADA, J

KITAGUCHI, H

EGI, T

ODA, K

MIURA, Y

MAZAKI, H

IKEDA, Y

HIROI, Z

TAKANO, M

TOMII, Y

机构：

[1] NATL DEF ACAD,DEPT MATH & PHYS,YOKOSUKA,KANAGAWA 239,JAPAN

[2] KYOTO UNIV,INST CHEM RES,UJI,KYOTO 611,JAPAN

[3] KYOTO UNIV,FAC ENGN,DEPT MET SCI & TECHNOL,KYOTO 606,JAPAN

来源：

PHYSICA C | 1990年 / 170卷 / 3-4期

关键词：

16;

D O I：

10.1016/0921-4534(90)90319-A

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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. © 1990.

引用

页码：249 / 253

页数：5

共 17 条

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