Skryabina O V, Bakurskiy S V, Shishkin A G, Klimenko A A, Napolskii K S, Klenov N V, Soloviev I I, Ryazanov V V, Golubov A A, Roditchev D, Kupriyanov M Yu, Stolyarov V S
Institute of Solid State Physics RAS, Chernogolovka, Russia, 142432.
Moscow Institute of Physics and Technology, Dolgoprudny, Russia, 141700.
Sci Rep. 2021 Jul 27;11(1):15274. doi: 10.1038/s41598-021-94720-5.
Unlike conventional planar Josephson junctions, nanowire-based devices have a bridge geometry with a peculiar coupling to environment that can favor non-equilibrium electronic phenomena. Here we measure the influence of the electron bath overheating on critical current of several bridge-like junctions built on a single Au-nanowire. Using the Usadel theory and applying the two-fluid description for the normal and superconducting components of the flowing currents, we reveal and explain the mutual influence of the neighbouring junctions on their characteristics through various processes of the electron gas overheating. Our results provide additional ways to control nanowire-based superconducting devices.
与传统的平面约瑟夫森结不同，基于纳米线的器件具有桥状几何结构，与环境存在特殊耦合，这有利于非平衡电子现象。在此，我们测量了电子浴过热对基于单根金纳米线构建的几个桥状结的临界电流的影响。利用乌萨德尔理论，并对流动电流的正常和超导分量应用双流体描述，我们揭示并解释了相邻结通过电子气过热的各种过程对其特性的相互影响。我们的结果为控制基于纳米线的超导器件提供了额外的方法。
