Intrinsic Josephson junctions in Bi2212 and Bi2223 intergrowth films

被引：2
|
作者：
Qi, Y [1 ]
Sakai, K [1 ]
Murakami, H [1 ]
Aoki, R [1 ]
Ito, T [1 ]
机构：
[1] Osaka Univ, Dept Elect Engn, Suita, Osaka 5650871, Japan
来源：
THIN SOLID FILMS | 2000年 / 366卷 / 1-2期
关键词：
superconductivity; surface morphology; intergrowth film; intrinsic Josephson;
D O I：
10.1016/S0040-6090(00)00747-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Intergrowth films containing Bi2212 and Bi2223 were fabricated by means of a reactive co-deposition method. These films were deposited under the supply of highly condensed ozone lover 95%) on a Bi2201/Bi2212 buffer layer that was grown on the MgO (100) substrate. The (Bi2212 + Bi2223) intergrowth film exhibits resistive superconductivity at T-c,T-zero = 80 K. The temperature dependence of I-V characteristic along the crystal c-axis of this intergrowth film showed a weak-link Josephson tunneling process well explained by Ambegaokar-Baratoff's theory, in which the maximum supercurrent I-c is as large as 100 mA at T = 4.2 K. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：77 / 81
页数：5
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