ANOMALOUS TEMPERATURE-DEPENDENCE OF CRITICAL-CURRENT IN YBACUO/PRBACUO/YBACUO TRILAYER JOSEPHSON-JUNCTIONS

被引：2

作者：

AKOH, H

SATO, H

TAKADA, S

机构：

[1] Electrotechnical Laboratory, Tsukuba, Ibaraki 305

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1995年 / 5卷 / 02期

关键词：

D O I：

10.1109/77.403063

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：

We have observed an anomalous temperature dependence of the critical current I-c in all (103)-oriented YBaCuO/PrBaCuO/YBaCuO trilayer Josephson junctions with barrier thicknesses of 50 nm and an Ar plasma treatment for the barriers. I-c of the junction increases drastically at around 40 K as temperature is increased, has a maximum value at about 65 K, and decreases towards the critical temperature of junction. The normal resistance of junction, on the other hand, decreased exponentially with increasing temperature. The anomalous observed temperature dependence of I-c may come from the proximity effect, taking into account of the, semiconductor-like properties of the PrBaCuO barrier.

引用

页码：2373 / 2376

页数：4

共 17 条

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