INTERGRANULAR AND INTRAGRANULAR IRREVERSIBILITY TEMPERATURES IN HIGH-T(C) CERAMIC SUPERCONDUCTORS

被引：1

作者：

LUZYANIN, ID ^{[1
]}

GINZBURG, SL ^{[1
]}

KHAVRONIN, VP ^{[1
]}

TAROVIK, EG ^{[1
]}

LIPPOLD, B ^{[1
]}

HERRMANN, J ^{[1
]}

BORNER, H ^{[1
]}

WURLITZER, M ^{[1
]}

机构：

[1] UNIV LEIPZIG,LEIPZIG,GERMANY

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1993年 / 6卷 / 08期

关键词：

D O I：

10.1088/0953-2048/6/8/008

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

It is first demonstrated experimentally that there are two different irreversibility temperatures, T(irr)cer and T(irr)gr (T(irr)cer < T(irr)gr), in high-T(c) ceramic superconductors of the compositions Bi1.6Pb0.3Sb0.1Sr2Ca2Cu2.8Oy and YBa2Cu4O8. At T < T(irr)cer, both intragranular and intergranular irreversible currents are induced by pinning. When T > T(irr)gr, there are no irreversible currents. It is found that T(irr)gr < T(c) for bismuth ceramics and T(irr)gr is similar to T(c) for YBa2Cu4O8.

引用

页码：597 / 604

页数：8

共 7 条

[1] THERMAL DEPINNING AND MELTING OF THE FLUX-LINE LATTICE IN HIGH-TC SUPERCONDUCTORS [J].