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Fabrication of a Single-electron Transistor with Mesoscopic Tunnel Junctions

机译:具有介观隧道结的单电子晶体管的制造

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摘要

We developed SETs made by aluminum electrodes and AI/AIOx/AI tunnel junctions, and tested their behavior at 0.3 K in the superconducting regime. The devices are fabricated using a double-angle evaporation through a suspended resist mask, defined by electron-beam lithography (shadow mask and tilted evaporation technique). By exploiting the shadow effect, we can reduce the junction dimensions and achieve a figure of 70 nm for the junction side. In this work we will show our experimental results both on the fabrication and on the performance of the superconducting single-electron transistors.
机译:我们开发了由铝电极和AI / AIOx / AI隧道结制成的SET,并在超导状态下测试了它们在0.3 K下的行为。使用通过悬浮抗蚀剂掩模的双角度蒸发来制造器件,该掩模由电子束光刻技术(阴影掩模和倾斜蒸发技术)定义。通过利用阴影效应,我们可以减小结尺寸,并在结侧获得70 nm的图形。在这项工作中,我们将展示关于超导单电子晶体管的制造和性能的实验结果。

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