Abstract

This study is devoted to the investigation of tunneling superconductor–insulator–superconductor (SIS) Josephson junctions with a new type of shunt based on an additional superconductor–insulator–normal metal (SIN) junction placed around the SIS junction. In the course of study, the parameters of such shunted junctions are numerically calculated and their current–voltage characteristics (IVC) are simulated. The designed structures are assembled in real samples and their parameters are studied; the IVC of junctions with different degrees of shunting are measured, and the behavior of these junctions under the influence of high-frequency signals in the subterahertz range is studied.

中文翻译：

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具有整体超导体-绝缘体-普通金属分流器的约瑟夫森隧道结

摘要

本研究致力于研究隧穿超导体-绝缘体-超导体 (SIS) 约瑟夫森结，该结采用一种新型分流器，该分流器基于放置在 SIS 结周围的附加超导体-绝缘体-普通金属 (SIN) 结。在研究过程中，对这种分流结的参数进行了数值计算，并模拟了它们的电流-电压特性（IVC）。设计的结构在实际样品中组装并研究其参数；测量了具有不同分流程度的结的IVC，研究了这些结在亚赫兹范围内的高频信号影响下的行为。