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arXiv · 2005.05671

Vanadium gate-controlled Josephson half-wave nanorectifier

C. Puglia·G. De Simoni·N. Ligato·F. Giazotto
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Abstract

Recently, the possibility to tune the critical current of conventional metallic superconductors via electrostatic gating was shown in wires, Josephson weak-links and superconductor-normal metal-superconductor junctions. Here we exploit such a technique to demonstrate a gate-controlled vanadium-based Dayem nano-bridge operated as a \emph{half-wave} rectifier at $3$ K. Our devices exploit the gate-driven modulation of the critical current of the Josephson junction, and the resulting steep variation of its normal-state resistance, to convert an AC signal applied to the gate electrode into a DC one across the junction. All-metallic superconducting gated rectifiers could provide the enabling technology to realize tunable photon detectors and diodes useful for superconducting electronics circuitry.

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C. Puglia, G. De Simoni, N. Ligato, F. Giazotto. 2020-05-12. Vanadium gate-controlled Josephson half-wave nanorectifier. https://doi.org/10.1063/5.0013512

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