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首页> 外文期刊>Physica, C. Superconductivity and its applications >Modeling rectification effects in mesoscopic superconducting devices
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Modeling rectification effects in mesoscopic superconducting devices

机译:介观超导器件中的整流效应建模

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摘要

We study thermal fluctuations and capacitive effects on small Josephson Junction Rings (JJR) that mimics the rectification phenomena recently observed in triangular shaped mesoscopic superconductors, due to the superposition of the field induced persistent current with the bias current. At finite temperature we predicted that the amplitude of the rectified signal depends strongly on the current contacts configuration on the JJR, in coincidence with experiments. In addition, we analyze the range of parameters where a closed loop of capacitive junctions is an appropriate model to explain the experimental observations. We conclude that the closed loop of weak links, a JJR, is a simple, robust and good model to explain the observed voltage rectification effects on mesoscopic superconducting samples for a wide range of temperature.
机译:我们研究了小型约瑟夫逊结环(JJR)的热涨落和电容效应,该环模仿了最近在三角形介观超导体中观察到的整流现象,这是由于磁场感应的持续电流与偏置电流的叠加。在实验的同时,我们预测在有限的温度下,整流信号的幅度很大程度上取决于JJR上的电流触点配置。此外,我们分析了电容结的闭环是解释实验观察的合适模型的参数范围。我们得出的结论是,弱链接的闭环JJR是一个简单,健壮和良好的模型,可以解释在宽温度范围内观察到的电压整流对介观超导样品的影响。

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