The effects of composition, synthesis conditions, oxygen content and F doping on superconductivity and structure for R-substituted Bi-2201

被引：6

作者：

Lan, YC ^{[1
]}

Che, GC ^{[1
]}

Jia, SL ^{[1
]}

Wu, F ^{[1
]}

Dong, C ^{[1
]}

Chen, H ^{[1
]}

Zhao, ZX ^{[1
]}

机构：

[1] ACAD SINICA,INST PHYS,NATL LAB SUPERCONDUCTIV,BEIJING 100080,PEOPLES R CHINA

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1996年 / 9卷 / 04期

关键词：

D O I：

10.1088/0953-2048/9/4/006

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effects of composition, synthesis conditions, oxygen content and F doping on superconductivity and structure for the R-substituted Bi-2201 compound was investigated by means of XRD and measurements of superconductivity. For the Bi(1.95)Sr(2.05-x)R(x)CuO(6+y) compound (R = La, Pr, Nd and Sm), the optimum value of x for T-c is x = 0.4. When x = 0.4, the optimum sintering temperature is 840 degrees C for R = La, Pr and Nd, 820-830 degrees C for R = Sm. T-c decreases with decreasing the ionic radius of R. For Bi1.95Sr1.65La0.4CuO6+y, the optimum range of oxygen content is y = 0.28-0.33 and the superconductivity is improved by quenching. For F-doped Bi-2201, T-c decreases with increasing F content.

引用

页码：297 / 302

页数：6

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