Magnitude and Spatial Distribution Control of the Supercurrent in Bi2O2Se-Based Josephson Junction

Abstract

Many proposals in exploring topological quantum computation are based on superconducting quantum devices constructed on materials with strong spin-orbit coupling (SOC). For these devices, a full control on both the magnitude and the spatial distribution of the supercurrent would be highly demanded, but has been elusive up to now. We constructed proximity-type Josephson junction on nanoplates of Bi2O2Se, a new emerging semiconductor with strong SOC. Through electrical gating, we show that the supercurrent can be fully turned ON and OFF, and its real-space pathways can be configured either through the bulk or along the edges. Our work demonstrates Bi2O2Se as a promising platform for constructing multifunctional hybrid superconducting devices as well as for searching for topological superconductivity.

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Cited by in corpus (11)

• Huge permittivity and premature metallicity in Bi${}_2$O${}_2$Se single crystals
• Beyond the effective length: How to analyze magnetic interference patterns of thin-film planar Josephson junctions with finite lateral dimensions
• Magnetic field filtering of the hinge supercurrent in unconventional metal NiTe${}_2$-based Josephson junctions
• Theory of scanning gate microscopy imaging of the supercurrent distribution in a planar Josephson junction
• Bi2O2Se nanowires presenting high mobility and strong spin-orbit coupling
• Reversible and nonvolatile manipulation of the spin-orbit interaction in ferroelectric field-effect transistors based on a two-dimensional bismuth oxychalcogenide
• Tuning the supercurrent distribution in parallel ballistic graphene Josephson junctions
• Electron transport properties of a narrow-bandgap semiconductor Bi${}_2$O${}_2$Te nanosheet
• Diamond-shaped evolution of the superconducting interference pattern in NbTiN weak-link Josephson junctions
• Local Control of Supercurrent Density in Epitaxial Planar Josephson Junctions
• Anisotropic supercurrent suppression and revivals in a graphene-based Josephson junction under in-plane magnetic fields