STRONG DECREASE OF ANISOTROPY BY LEAD-SUBSTITUTION IN Bi2Sr2CaCu2O8+y

被引：14

作者：

Regi, F. X. ^{[1
]}

Schneck, J. ^{[1
]}

Savary, H. ^{[1
]}

Daguet, C. ^{[1
]}

Huet, F. ^{[1
]}

机构：

[1] Ctr Natl Etud Telecommun, 196 Ave Henri Ravera, F-92220 Bagneux, France

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1993年 / 3卷 / 01期

关键词：

D O I：

10.1109/77.233339

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The in-plane (rho(ab)) and out-of-plane (rho(c))(c) resistivities have been measured above Tc, in several lead-substituted single crystals of Bi2Sr2CaCu2O8+y and compared to the results obtained for lead-free samples. We have found that the lead substitution induces an important decrease of rho(c) resulting in a lowering of the anisotropy rho(c)/rho(ab) by two orders of magnitude near Tc. Moreover we have found that rho(c) changes its behavior from a semiconducting type of behavior to a metallic one. We relate these results to the role of lead, which was recently infered from structural considerations. We discuss of the possibility to improve the out-of-plane critical current by lead substitution.

引用

页码：1190 / 1193

页数：4

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