论文标题
订单参数的边界条件和接近性影响双重导向连接的内相差异
Boundary conditions for the order parameter and the proximity influenced internal phase differences in double superconducting junctions
论文作者
论文摘要
本文概述了内相差异对超导体非正式金属螺旋体（SINIS）和超导体 - 导管 - 导管 - 螺旋体（SISIS）隧道隧道隧道双重连接的非常规依赖性。结果是在Ginzburg-Landau（GL）方法中获得的，该方法包括在约瑟夫森（Josephson）通过界面耦合的情况下，包括超导体顺序参数的边界条件。边界条件在GL理论中得出，并通过显微镜进行了证实。 The absence of the one-to-one correspondence between external $ϕ$ and internal $χ_{1,2}$ phase differences in the junctions is shown to occur in two qualitatively different ways, both of which result in the range of $χ_{1,2}$ reduced and prevent the $4π$-periodic current-phase relation $j=j_c\sin\fracϕ{2}$.在SINIS连接中，超冲流引起的相位入侵的效果$φ$在介质长度$ l $的中央电极的末端面之间可以发挥至关重要的作用。在SISIS连接处，发生了互换模式的政权，该模式被修改为$ l $降低。解决了具有紧密间隔界面的双连接处的接近性和对破坏效果。
This paper gives an overview of the unconventional dependence of internal phase differences on the external phase difference in superconductor-normal metal-superconductor (SINIS) and superconductor-superconductor-superconductor (SISIS) tunnel double junctions. The results are obtained within the Ginzburg-Landau (GL) approach that includes boundary conditions for the superconductor order parameter in the presence of a Josephson coupling through interfaces. The boundary conditions are derived within the GL theory and substantiated microscopically. The absence of the one-to-one correspondence between external $ϕ$ and internal $χ_{1,2}$ phase differences in the junctions is shown to occur in two qualitatively different ways, both of which result in the range of $χ_{1,2}$ reduced and prevent the $4π$-periodic current-phase relation $j=j_c\sin\fracϕ{2}$. In SINIS junctions, the effect of the supercurrent-induced phase incursion $φ$ between the end faces of the central electrode of mesoscopic length $L$ can play a crucial role. In SISIS junctions, there occurs the regime of interchanging modes, which is modified as $L$ decreases. The proximity and pair breaking effects in the double junctions with closely spaced interfaces are addressed.
