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首页> 外文期刊>Philosophical magazine, B. Physics of condensed matter, electronic, optical, and magnetic properties >Shapiro steps in superconducting films with a periodic pinning potential
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Shapiro steps in superconducting films with a periodic pinning potential

机译：夏皮罗（Shapiro）涉足具有周期性钉扎潜力的超导薄膜

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摘要

Shapiro voltage steps at voltages V-n=nV(o) occur in the voltage-current characteristics of a superconducting film with a periodic pinning potential in the presence of rf radiation. We report on their experimental observation in a superconducting film with a square lattice of perforated microholes (antidots) and on numerical simulations showing the Shapiro steps in the voltage-current characteristics of the de flux transformer. For the square antidot lattice, the ratio V-o/v of the step height to the applied rf frequency depends on the antidot lattice period d, while in the flux transformer geometry this ratio can be tuned by the magnetic field. This tuneability of the resolution makes the flux transformer a good candidate for applications (e.g. broad-band radiation detection). [References: 15]
机译：在存在射频辐射的情况下，具有周期性钉扎电势的超导膜的电压-电流特性中会出现电压为V-n = nV（o）的Shapiro电压阶跃。我们报告了他们在带有穿孔微孔（解毒剂）正方形晶格的超导膜中的实验观察结果，并进行了数值模拟，显示了Shapiro磁通变压器的电压-电流特性中的阶跃。对于正方形的点阵点阵，步高与所施加的rf频率的比V-o / v取决于点阵点阵周期d，而在磁通互感器几何结构中，该比值可以通过磁场来调整。分辨率的这种可调节性使磁通互感器成为应用（例如宽带辐射检测）的理想选择。 [参考：15]

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