Determination of the Parameters of Tunneling Barriers of Superconducting Tunnel Structures for Submillimeter Receivers

被引：1

作者：

Paramonov, M. E. ^{[1
]}

Filippenko, L. V. ^{[1
]}

Dmitriev, P. N. ^{[1
]}

Fominsky, M. Yu. ^{[1
]}

Koshelets, V. P. ^{[1
]}

机构：

[1] Russian Acad Sci, Kotelnikov Inst Radio Engn & Elect, Moscow 125009, Russia

来源：

JOURNAL OF COMMUNICATIONS TECHNOLOGY AND ELECTRONICS | 2019年 / 64卷 / 10期

基金：

俄罗斯科学基金会;

关键词：

NB; JUNCTIONS; FABRICATION;

D O I：

10.1134/S1064226919100115

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 parameters of the tunneling barrier of Nb/Al-AlOx/Nb Josephson junctions were estimated in a wide range of current densities using the Simmons method. It is shown that with an increase in resistivity RnS from 60 to 2100 omega mu m(2) (a reduction in the density of the tunneling current of junction J from 3.5 to 0.1 kA/cm(2)), the height of the tunneling barrier increases from 0.85 to 1.18 eV and its width increases from 10.7 to 13.3 angstrom. The experimentally observed linear dependence of the tunneling barrier parameters on RnS made it possible to estimate the capacitance of junctions in the range of RnS 10-30 omega mu m(2) required to create low-noise submillimeter-range receivers.

引用

页码：1144 / 1148

页数：5

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