Gate-controlled supercurrent in epitaxial Al/InAs nanowires

Abstract

Gate-controlled supercurrent (GCS) in superconductor nanobridges has recently attracted attention as a means to create superconducting field effect transistors. Despite the clear advantage for applications with low power consumption and high switching speeds, the microscopic mechanism of the field effect is still under debate. In this work, we realize GCS for the first time in an epitaxial superconductor, which is created as a shell on an InAs nanowire. We show that the supercurrent in the epitaxial Al layer can be switched to the normal state by applying $\simeq \pm$ 23V on a bottom gate insulated from the nanowire by a crystalline hBN layer. Our extensive study on the temperature and magnetic field dependencies of GCS suggests that hot electron injection alone cannot explain our experimental findings.

References in corpus (40)

• A Quantum Engineer's Guide to Superconducting Qubits
• Superconducting nanowire single-photon detectors: physics and applications
• Atomically thin boron nitride: a tunnelling barrier for graphene devices
• Epitaxy of Semiconductor-Superconductor nanowires
• From Andreev to Majorana bound states in hybrid superconductor-semiconductor nanowires
• A Semiconductor Nanowire-Based Superconducting Qubit
• Hard gap in epitaxial semiconductor-superconductor nanowires
• The Josephson heat interferometer
• Beyond Moore's technologies: operation principles of a superconductor alternative
• Direct microwave measurement of Andreev-bound-state dynamics in a proximitized semiconducting nanowire
• Superconducting Qubits: A Short Review
• Metallic supercurrent field-effect transistor
• Towards phase-coherent caloritronics in superconducting circuits
• Roadmap to Majorana surface codes
• Tunnelling Spectroscopy of Andreev States in Graphene
• Conductance Quantization at zero magnetic field in InSb nanowires
• Kinetic Inductance Magnetometer
• A superconducting switch actuated by injection of high energy electrons
• Gate-controlled Suspended Titanium Nanobridge Supercurrent Transistor
• Field-Effect Controllable Metallic Josephson Interferometer
• Magnetotransport Experiments on Fully Metallic Superconducting Dayem Bridge Field-Effect Transistors
• Josephson Field-Effect Transistors Based on All-Metallic Al/Cu/Al Proximity Nanojunctions
• On the origin of the controversial electrostatic field effect in superconductors
• High-Energy Quasiparticle Injection into Mesoscopic Superconductors
• Spin transport in fully hexagonal boron nitride encapsulated graphene
• Large-scale BN tunnel barriers for graphene spintronics
• Electrically Tunable Superconductivity Through Surface Orbital Polarization
• Field-Effect Control of Metallic Superconducting Systems
• Large Enhancement of Critical Current in Superconducting Devices by Gate Voltage
• Electrostatic control of phase slips in Ti Josephson nanotransistors
• Superconducting nanowire single photon detectors for quantum information and communications
• Sauter-Schwinger effect in a Bardeen-Cooper-Schrieffer superconductor
• Niobium Dayem nano-bridge Josephson field-effect transistors
• Tuning supercurrent in Josephson field effect transistors using h-BN dielectric
• Spectroscopic Signatures of Gate-Controlled Superconducting Phases
• Vanadium gate-controlled Josephson half-wave nanorectifier
• Broken time-reversal symmetry in superconducting Pr${}_{1-x}$La${}_x$Pt${}_4$Ge${}_{12}$
• Single Channel Josephson Effect in a High Transmission Atomic Contact
• Impact of electrostatic fields in layered crystalline BCS superconductors
• Gate control of superconductivity in mesoscopic all-metallic devices

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• Gate-controlled supercurrent effect in dry-etched Dayem bridges of non-centrosymmetric niobium rhenium
• Dynamics of Gate-Controlled Superconducting Dayem Bridges
• Multimode operation of a superconducting nanowire switch in the nanosecond regime
• Microwave dynamics of gated Al/InAs superconducting nanowires
• Microscopic mechanism of electric field-induced superconductivity suppression in metallic thin films
• Side-gate modulation of supercurrent in InSb nanoflag-based Josephson junctions
• Few-Mode and Anisotropic Quantum Transport in InSb Nanoribbons Using an All-van der Waals Material-Based Gate