POLYMERIC PRECURSOR DERIVED HIGH-TC BISMUTH SUPERCONDUCTORS

被引：4

作者：

CHEN, TM

HU, YH

机构：

[1] Institute of Applied Chemistry, National Chiao Tung University, Hsinchu

来源：

PHYSICA C | 1991年 / 190卷 / 1-2期

关键词：

D O I：

10.1016/S0921-4534(05)80222-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Two bismuth-based high-T(c) oxide superconductors have been prepared by employing the polymeric citric acid/ethylene glycol (CA/EG) precursors, The polymeric precursors of mixed cations can be converted into X-ray pure Bi2Sr2CaCu2Ox (2212) and Bi1.5Pb0.5Sr2Ca2Cu3Oy (2223) phases with T(c)(zero)s in the range of 76 K and 100-110 K, respectively, and with good stoichiometry control and sample homogeneity. We describe the chemistry involved in the materials processing leading to the formation of bismuth-based superconductors and report the results from materials characterization by differential thermal analysis, resistivity and magnetization measurements.

引用

页码：124 / 125

页数：2