论文标题
基于高度无序的超导体/低抗性正常金属双层的约瑟夫森连接
Josephson junction based on highly disordered superconductor/low-resistive normal metal bilayer
论文作者
论文摘要
我们根据由高度无序的超导体（S）和低阻抗的正常金属（N）组成的厚度SN双层的可变厚度SN双层基础，计算了SN-S-S-SN Josephson结的电流相关关系（CPR）。 In case when the thickness of S,N layers and length of S constriction is about of superconducting coherence length the CPR is single-valued, could be close to sinusoidal one and the product $I_cR_n$ can reach $Δ(0)/2|e|$ ($I_c$ is the critical current of the junction, $R_n$ is its normal-state resistance, $Δ(0)$ is the superconductor gap of零温度下的单层层。我们认为，正常层应从S收缩中提供良好的热量去除，并且当电流特征不是滞后时，参数范围范围范围，并且$ i_cr_n $相对较大。
We calculate current-phase relation (CPR) of a SN-S-SN Josephson junction based on a variable thickness SN bilayer composed of highly disordered superconductor (S) and low-resistive normal metal (N) with proximity induced superconductivity. In case when the thickness of S,N layers and length of S constriction is about of superconducting coherence length the CPR is single-valued, could be close to sinusoidal one and the product $I_cR_n$ can reach $Δ(0)/2|e|$ ($I_c$ is the critical current of the junction, $R_n$ is its normal-state resistance, $Δ(0)$ is the superconductor gap of single S layer at zero temperature). We argue that the normal layer should provide good heat removal from S constriction and there is range of parameters when current-voltage characteristic is not hysteretic and $I_cR_n$ is relatively large.
