Electrical Characteristics of Nb Based Superconductor-Ferromagnet-Insulator-Superconductor Josephson Junctions

被引：0
|
作者：
Ito, Hiroshi [1 ]
Taniguchi, Soya [1 ]
Ishikawa, Kouta [1 ]
Akaike, Hiroyuki [1 ]
Fujimaki, Akira [1 ]
机构：
[1] Nagoya Univ, Dept Quantum Engn, Nagoya, Aichi 4648601, Japan
来源：
2015 15TH INTERNATIONAL SUPERCONDUCTIVE ELECTRONICS CONFERENCE (ISEC) | 2015年
关键词：
PdNi; ferromagnet; SFIS; Josephson junction; uniformity; TECHNOLOGY;
D O I：
暂无
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 studied electrical characteristics of the Nb based Josephson junctions with a ferromagnetic (F) barrier layer which would be useful as an element of superconducting integrated circuits. A PdNi alloy with a Ni ratio of 11 at% was used as an F layer. The junctions showed a small standard deviation between 0.6% and 1.7% for the critical current (I-c) spread in a series array of 100 junctions. External magnetic field dependence of Ic showed homogeneity of the junction barrier layers, and effects of the magnetization in an F layer. On the other hand, a change in the film thickness of an F layer caused a drastic change in the critical current density.
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页数：3
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