Vanadium gate-controlled Josephson half-wave nanorectifier

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...

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Bibliographic Details
Published in:arXiv.org 2020-05
Main Authors: Puglia, C, De Simoni, G, Ligato, N, Giazotto, F
Format: Article
Language:English
Subjects:
Circuits
Critical current (superconductivity)
Electric converters
Josephson junctions
Rectifiers
Superconductivity
Superconductor junctions
Superconductors
Vanadium
Online Access:Get full text
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.2005.05671