CRITICAL CURRENT-DENSITY, REVERSIBLE AND IRREVERSIBLE MAGNETIZATION IN YBA2CU4O8 AND Y0.9CA0.1BA2CU4O8

被引：11

作者：

FELNER, I ^{[1
]}

BROSH, B ^{[1
]}

YARON, U ^{[1
]}

YESHURUN, Y ^{[1
]}

YACOBY, E ^{[1
]}

机构：

[1] BAR ILAN UNIV,IL-52100 RAMAT GAN,ISRAEL

来源：

PHYSICA C | 1991年 / 173卷 / 5-6期

关键词：

D O I：

10.1016/0921-4534(91)90733-F

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

DC magnetic measurements on the high-T(c) superconductors YBa2Cu4O8 (124, T(c) = 80 K) and Y0.9Ca0.1Ba2Cu4O8 (T(c) = 87 K) are reported. The irreversible lines of 124 and ceramic YBa2Cu3O7 (123) are quite similar. The results show that there is no significant difference between the critical currents of the 124 phase and those of the 123 phase. Conversion of 124 into 123 + CuO does not change the grain size of the material but enhances its critical current density.

引用

页码：337 / 341

页数：5

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