Half-Integer Shapiro Steps in a Short Ballistic InAs Nanowire Josephson Junction

Abstract

We report on half-integer Shapiro steps observed in an InAs nanowire Josephson junction. We observed the Shapiro steps of the short ballistic InAs nanowire Josephson junction and found anomalous half-integer steps in addition to the conventional integer steps. The half-integer steps disappear as the temperature increases or transmission of the junction decreases. These experimental results agree closely with numerical calculation of the Shapiro response for the skewed current phase relation in a short ballistic Josephson junction.

References in corpus (27)

• Non-Abelian Anyons and Topological Quantum Computation
• Charge insensitive qubit design derived from the Cooper pair box
• Non-Abelian statistics and topological quantum information processing in 1D wire networks
• Observation of the fractional ac Josephson effect: the signature of Majorana particles
• Majorana Zero Modes and Topological Quantum Computation
• Supercurrent reversal in quantum dots
• $4\pi$-periodic Josephson supercurrent in HgTe-based topological Josephson junctions
• Gapless Andreev bound states in the quantum spin Hall insulator HgTe
• Half-integer Shapiro steps at the 0-pi crossover of a ferromagnetic Josephson junction
• Critical Current 0-$\pi$ Transition in Designed Josephson Quantum Dot Junctions
• Ballistic edge states in Bismuth nanowires revealed by SQUID interferometry
• Tuning the Josephson current in carbon nanotubes with the Kondo effect
• $4\pi$ periodic Andreev bound states in a Dirac semimetal
• Current-phase relations of few-mode InAs nanowire Josephson junctions
• Coherent low-energy charge transport in a diffusive S-N-S junction
• Conduction Channels of an InAs-Al nanowire Josephson weak link
• Second-harmonic current-phase relation in Josephson junctions with ferromagnetic barriers
• Geometry-related magnetic interference patterns in long SNS Josephson junctions
• Study of 0-$\pi$ phase transition in hybrid superconductor-InSb nanowire quantum dot devices
• Cooper-pair splitting in two parallel InAs nanowires
• Current-phase relations of InAs nanowire Josephson junctions: from interacting to multi-mode regimes
• Dominant non-local superconducting proximity effect due to electron-electron interaction in a ballistic double nanowire
• Weak-link Josephson Junctions Made from Topological Crystalline Insulators
• Nonadiabatic Dynamics of Strongly Driven Diffusive Josephson Junctions
• Anomalous modulation of Josephson radiation in nanowire-based Josephson junctions
• Gate tunable parallel double quantum dot in InAs double-nanowire junctions
• Quantum decay of the supercurrent and intrinsic capacitance of Josephson junctions beyond the tunnel limit

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• Parity-conserving Cooper-pair transport and ideal superconducting diode in planar Germanium
• The Multi-terminal Inverse AC Josephson Effect
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• Half-integer Shapiro steps in highly transmissive InSb nanoflag Josephson junctions
• Top-down fabrication of bulk-insulating topological insulator nanowires for quantum devices
• Direct measurement of a $\sin (2\phi )$ current phase relation in a graphene superconducting quantum interference device
• Probing Topological Superconductivity of oxide nanojunctions using fractional Shapiro steps
• From nonreciprocal to charge-4e supercurrents in Ge-based Josephson devices with tunable harmonic content
• Quasiparticle trapping at vortices producing Josephson supercurrent enhancement
• Fractional AC Josephson effect in a topological insulator proximitized by a self-formed superconductor
• Half-integer Shapiro Steps in Strong Ferromagnetic Josephson Junctions
• The hybrid Josephson rhombus: A superconducting element with tailored current-phase relation
• Gate-defined Josephson weak-links in monolayer $\mathrm{WT}{\mathrm{e}}_2$
• Voltage-controlled synthesis of higher harmonics in hybrid Josephson junction circuits
• Non-Hermitian superconducting diode effect
• Gate- and flux-tunable sin(2$\phi$) Josephson element with proximitized Ge-based junctions
• Dynamical Stabilization of Multiplet Supercurrents in Multi-terminal Josephson Junctions