论文标题
超导体正常金属螺旋体连接器的电流 - 电压特性
Current-voltage characteristics of superconductor-normal metal-superconductor junctions
论文作者
论文摘要
我们开发了超导金属 - 高螺旋体（SNS）连接的电流电压（I-U）特征的理论。在小电压和足够低的温度下，连接的I-U特性由非弹性松弛时间τ_{in}控制。特别是，线性电导与τ_{in}成正比。在此制度中，I-U特征可以仅以正常区域中状态密度为ν（χ）的依赖性表示，对跨交界处的顺序参数的相位差。相反，在大电压下，设备的I-U特性由弹性放松时间τ_{el}控制，τ_{el}比非弹性小得多。
We develop a theory of current-voltage (I-U) characteristics for superconductor-normal metal-superconductor (SNS) junctions. At small voltages and sufficiently low temperatures the I-U characteristics of the junction is controlled by the inelastic relaxation time, τ_{in}. In particular, the linear conductance is proportional to, τ_{in}. In this regime the I-U characteristics can be expressed solely in terms of dependence of the density of states in the normal region, ν(χ), on the phase difference of the order parameter across the the junction. In contrast, at large voltages the I-U characteristics of the device is controlled by the elastic relaxation time, τ_{el}, which is much smaller than the inelastic one.
