SUBSTITUTION EFFECT OF RARE-EARTH (R) FOR CA IN THE BI2SR2CA1-XRXCU2O8+Y SYSTEM

被引：27

作者：

YOSHIZAKI, R

FUJIKAMI, J

ISHIGAKI, T

ASANO, H

机构：

[1] UNIV TSUKUBA, INST MAT SCI, TSUKUBA, IBARAKI 305, JAPAN

[2] UNIV TSUKUBA, CTR CRYOGEN, TSUKUBA, IBARAKI 305, JAPAN

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1990年 / 171卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(90)90147-7

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The superconducting transition temperature, Tc, was measured for the 2212-phase Bi-Sr-Ca-Cu-O compounds with varying a rare-earth atom (R) which was partially substituted for Ca by 20% to optimize hole concentrations and Tc. We found that Tc was varied systematically with the ionic radius of the rare earth; Tc was increased with decreasing the ionic radius. These results are compared with the results in the RBa2Cu3O7 system, which has a double pyramidal layer structure similar to that of the 2212-phase BSCCO. © 1990.

引用

页码：315 / 320

页数：6