Effect of anion concentration in BiF3 substitution for Bi2O3 in the Bi-Pb-Sr-Ca-Cu-O (2223-phase) system superconductor

被引：20
|
作者：
Watanabe, K [1 ]
机构：
[1] Gunma Univ, Fac Technol, Dept Chem Mat, Kiryu, Gumma 376, Japan
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1998年 / 11卷 / 09期
关键词：
D O I：
10.1088/0953-2048/11/9/004
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Partial substitution of BiF3 for Bi2O3 has been studied on the high-T-c superconducting materials of the Bi-Pb-Sr-Ca-Cu-O system (2223 phase). D.c. electrical resistivity, critical current density and a.c. magnetic susceptibility were measured by means of the standard four point probe technique and the inductance method, respectively. It was found that small substitution of BiF3 enhanced slightly the critical transition temperature and decreased the critical current density. A significant change in the atomic concentration of each component with the substitution of BiF3 was observed by XPS scan.
引用
收藏
页码：843 / 851
页数：9
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