论文标题
图形标线中超导特性的条件
Conditioning of Superconductive Properties in Graph-Shaped Reticles
论文作者
论文摘要
我们报告了约瑟夫森隧道连接到连接超导岛的平面综合网络中观察到的现象。这些网络（可识别为树状图形）具有由约瑟夫森连接的串联阵列组成的分支，这些阵列可以单独偏向和表征。图形结构中嵌入的阵列的约瑟夫森超电流和间隙参数都显示出与在同一芯片上构成的参考阵列和具有相同几何形状的参考阵列的属性。当约瑟夫森（Josephson）特征能量达到临界值时，嵌入式阵列的约瑟夫森电流的温度和磁场依赖性都显示出奇异的行为。生成嵌入式阵列的连接的间隙参数高于形成参考几何阵列的连接。
We report on phenomena observed in planar integrated networks obtained connecting superconducting island by Josephson tunnel junctions. These networks, identifiable as tree-like graphs, have branches consisting of series arrays of Josephson junctions which can be individually current biased and characterized. Both Josephson supercurrents and gap parameters of the arrays embedded in the graph structures display properties significantly different from those of reference arrays fabricated on the same chips and having identical geometrical shape. The temperature and magnetic field dependencies of the Josephson current of the embedded arrays both show a singular behavior when a critical value is reached by the Josephson characteristic energy. The gap parameter of the junctions generating the embedded arrays is higher than that of the junctions forming the reference geometrical arrays.
