Large Enhancement of Critical Current in Superconducting Devices by Gate Voltage
arXiv:2002.09082 · doi:10.1021/acs.nanolett.0c03547
Abstract
The gate-voltage-induced suppression of critical currents in metallic superconductors observed recently [De Simoni et al., Nat. Nanotechnol. 13, 802 (2018)] has raised crucial questions regarding the nature and mechanism of the electric field effect in these systems. Here, we demonstrate an enhancement of up to 30 % in critical current in the type II superconductor NbN, micro- and nano superconducting bridges, tunable via a back-gate voltage. Our suggested plausible mechanism of this enhancement in critical current based on surface nucleation and pinning of Abrikosov vortices is consistent with expectations and observations for type-II superconductor films with thicknesses comparable to their coherence length. Furthermore we demonstrate infinite electroresistance and a hysteretic resistance dependence on the applied electric field which could lead to logic and memory applications in a superconductors-based low-dissipation digital computing paradigm. Our work thus provides the first demonstration of an electric field enhancement in the superconducting property in metallic superconductors, constituting a crucial step towards understanding of electric field-effects on the fundamental properties of a superconductor and its exploitation for future technologies.
References in corpus (25)
- Spintronics: Fundamentals and applications
- Superconducting Spintronics
- Opportunities for mesoscopics in thermometry and refrigeration: Physics and applications
- Gate-induced Superconductivity in atomically thin MoS2 crystals
- Gate-induced superconductivity in a monolayer topological insulator
- Geometry-dependent critical currents in superconducting nanocircuits
- Controllable 0-pi Josephson junctions containing a ferromagnetic spin valve
- Superconducting properties and Hall Effect of epitaxial NbN thin films
- Magnetization-dependent shift in F/S/F trilayers with a strong ferromagnet
- Colloquium: Nonequilibrium effects in superconductors with a spin-splitting field
- Metallic supercurrent field-effect transistor
- Optical single photon detection in micron-scaled NbN bridges
- Electric field-induced superconducting transition of insulating FeSe thin film at 35 K
- Critical Current Behavior in Josephson Junctions with the Weak Ferromagnet PdNi
- Gate-controlled Suspended Titanium Nanobridge Supercurrent Transistor
- Ultra-efficient superconducting Dayem bridge field-effect transistor
- Spontaneous currents in superconducting systems with strong spin-orbit coupling
- Josephson Field-Effect Transistors Based on All-Metallic Al/Cu/Al Proximity Nanojunctions
- Non-equilibrium phenomena in superconductors probed by femtosecond time-domain spectroscopy
- Niobium Dayem nano-bridge Josephson field-effect transistors
- Proximity effect model of ultra-narrow NbN strips
- Vanadium gate-controlled Josephson half-wave nanorectifier
- Anomalous screening of an electrostatic field at the surface of niobium nitride
- Superconducting transistors: A boost for quantum computing
- Origin of Hysteresis in a Proximity Josephson Junction
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- Electrostatic field-driven supercurrent suppression in ionic-gated metallic Josephson nanotransistors
- Gate-controlled supercurrent in epitaxial Al/InAs nanowires
- Destroying superconductivity in thin films with an electric field
- Gate control of superconducting current: Mechanisms, parameters and technological potential
- Ionic gating in metallic superconductors: A brief review
- Effects of fabrication routes and material parameters on the control of superconducting currents by gate voltage
- Observation of Gapped Topological Surface States and Isolated Surface Resonances in PdTe Ultrathin Films
- Gate-Tunable Critical Current of the Three-Dimensional Niobium Nano-Bridge Josephson Junction
- Gate control of superconductivity in mesoscopic all-metallic devices
- Microscopic theory of supercurrent suppression by gate-controlled surface depairing
- Zero magnetic-field orbital vortices in s-wave spin-singlet superconductors
- Gate-controlled supercurrent effect in dry-etched Dayem bridges of non-centrosymmetric niobium rhenium
- Microscopic mechanism of electric field-induced superconductivity suppression in metallic thin films
- Interfacial control of vortex-limited critical current in type II superconductor films
- Magnetization texture imprints produced by flux avalanches in ferromagnet/insulator/superconductor heterostructures
- Gate-control of the current-flux relation of a Josephson quantum interferometer based on proximitized metallic nanojuntions