Spin-Orbit induced phase-shift in Bi${}_2$Se${}_3$ Josephson junctions

Abstract

The transmission of Cooper pairs between two weakly coupled superconductors produces a superfluid current and a phase difference; the celebrated Josephson effect. Because of time-reversal and parity symmetries, there is no Josephson current without a phase difference between two superconductors. Reciprocally, when those two symmetries are broken, an anomalous supercurrent can exist in the absence of phase bias or, equivalently, an anomalous phase shift ${\phi }_0$ can exist in the absence of a superfluid current. We report on the observation of an anomalous phase shift ${\phi }_0$ in hybrid Josephson junctions fabricated with the topological insulator Bi${}_2$Se${}_3$ submitted to an in-plane magnetic field. This anomalous phase shift ${\phi }_0$ is observed directly through measurements of the current-phase relationship in a Josephson interferometer. This result provides a direct measurement of the spin-orbit coupling strength and open new possibilities for phase-controlled Josephson devices made from materials with strong spin-orbit coupling.

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• Cubic spin-orbit coupling and anomalous Josephson effect in planar junctions
• Effect of Rashba and Dresselhaus spin-orbit coupling on supercurrent rectification and magnetochiral anisotropy of ballistic Josephson junctions
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• Critical supercurrent and ${\varphi }_0$ state for probing a persistent spin helix
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• Ferromagnetic Materials for Josephson π Junctions
• Ferromagnetic resonance and magnetic precessions in ${\phi }_0$ junction
• Magnetoelectric effects in Josephson junctions
• Link between supercurrent diode and anomalous Josephson effect revealed by gate-controlled interferometry
• Resistive state of SFS Josephson junctions in the presence of moving domain walls
• Self-biased current, magnetic interference response, and superconducting vortices in tilted Weyl semimetals with disorder
• Thermal noise effects on the magnetization switching of a ferromagnetic anomalous Josephson junction
• Demonstration of nonlocal Josephson effect in Andreev molecules
• Planar graphene-NbSe${}_2$ Josephson junctions in a parallel magnetic field
• Anomalous phase shift in a Josephson junction via an antiferromagnetic interlayer
• Engineering of anomalous Josephson effect in coherently coupled Josephson junctions
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• Edelstein effect induced superconducting diode effect in inversion symmetry breaking MoTe${}_2$ Josephson junctions
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• Gate-tunable hallmarks of unconventional superconductivity in non-centrosymmetric nanowires
• Nonlinear $\sigma$-model for disordered systems with intrinsic spin-orbit coupling
• Observation of Anomalous Josephson Effect in Nonequilibrium Andreev Interferometers
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• Engineered Josephson diode effect in kinked Rashba nanochannels
• Supercurrent Induced Charge-Spin Conversion in Spin-Split Superconductors
• Proximity-induced equilibrium supercurrent and perfect superconducting diode effect due to band asymmetry
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• Anisotropic vortex squeezing in synthetic Rashba superconductors: a manifestation of Lifshitz invariants
• Zeeman and Orbital Driven Phase Transitions in Planar Josephson Junctions
• Switching current distributions in ferromagnetic anomalous Josephson junctions
• Anomalous Josephson effect in planar noncentrosymmetric superconducting devices
• Dynamic spin-triplet order induced by alternating electric fields in superconductor-ferromagnet-superconductor Josephson junctions
• Long-range interaction of magnetic moments in a coupled system of S/F/S Josephson junctions with anomalous ground-state phase shift
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• InAs on Insulator: A New Platform for Cryogenic Hybrid Superconducting Electronics
• Controllable magnetic states in chains of coupled phi-0 Josephson junctions with ferromagnetic weak links
• Anomalous Josephson diode effect in superconducting multilayers
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• Unconventional Josephson supercurrent diode effect induced by chiral spin-orbit coupling
• Magnetoelectric effects in superconductor/ferromagnet bilayers
• Reconstruction-Induced ${\phi }_0$ Josephson Effect in Quantum Spin Hall Constrictions
• Kramers Fulde-Ferrell state and superconducting spin diode effect
• Spontaneous generation of vortices by a nonuniform Zeeman field in a two-dimensional Rashba coupled superconductor
• High magnetic field stability in a planar graphene-NbSe${}_2$ SQUID
• A Unified Description of Spin Transport, Weak Antilocalization and Triplet Superconductivity in Systems with Spin-Orbit Coupling
• Supercurrent vortices and Majorana zero modes induced by an inplane Zeeman field on the surface of a three-dimensional topological insulator
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• Buzdin, Shapiro and Chimera Steps in ${\phi }_0$ Josephson Junctions
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• Josephson diodes induced by the loop current states
• Voltage-driven dynamics of ${\phi }_0$-S/F/S Josephson junctions chains
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• Current-phase relation of a short multi-mode Bi2Se3 topological insulator nanoribbon Josephson junction with ballistic transport modes
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• Spontaneous supercurrents and vortex depinning in two-dimensional arrays of ${\phi }_0$-junctions
• Gate-Tunable Ambipolar Josephson Current in a Topological Insulator
• Super-resonant transport of topological surface states subjected to in-plane magnetic fields
• Originality of resonance and locking phenomena in SFS ${\phi }_0$ Josephson junction
• Anomalous phase shift and superconducting diode effect in Josephson junctions via thin films of rare-earth intermetallic magnets
• Determination of the current-phase relation of an InAs 2DEG Josephson junction with a microwave resonator