Giant fluctuations and gate control of the g-factor in InAs Nanowire Quantum Dots

Abstract

We study the g-factor of discrete electron states in InAs nanowire based quantum dots. The g values are determined from the magnetic field splitting of the zero bias anomaly due to the spin 1/2-Kondo effect. Unlike to previous studies based on 2DEG quantum dots, the g-factors of neighboring electron states show a surprisingly large fluctuation: g can scatter between 2 and 18. Furthermore electric gate tunability of the g-factor is demonstrated.

12 pages, 3 figures

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• Spins in few-electron quantum dots
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• Direct Measurement of the Spin-Orbit Interaction in a Two-Electron InAs Nanowire Quantum Dot
• Single-electron tunneling in InP nanowires
• Tunable effective g-factor in InAs nanowire quantum dots
• Even-odd effect in Andreev Transport through a Carbon Nanotube Quantum Dot
• Suppression of spin relaxation in an InAs nanowire double quantum dot
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• Kondo physics in tunable semiconductor nanowire quantum dots
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• Finite bias Cooper pair splitting
• Hybrid superconductor-semiconductor devices made from self-assembled SiGe nanocrystals on silicon
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• Spin-1/2 Kondo effect in an InAs nanowire quantum dot: the Unitary limit, conductance scaling and Zeeman splitting
• Shiba states and zero-bias anomalies in the hybrid normal-superconductor Anderson model
• Transport signatures of quasiparticle poisoning in a Majorana island
• Tuning Yu-Shiba-Rusinov States in a Quantum Dot
• Effective g-factor in Majorana Wires
• Multi-mode Fabry-Pérot conductance oscillations in suspended stacking-faults-free InAs nanowires
• Ferromagnetic proximity effect in F-QDot-S device
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• Spectroscopy of spin-split Andreev levels in a quantum dot with superconducting leads
• Transport signature of fractional Fermions in Rashba nanowires
• SiGe quantum dots for fast hole spin Rabi oscillations
• Universal lineshape of the Kondo zero-bias anomaly in a quantum dot
• Triplet-blockaded Josephson supercurrent in double quantum dots
• Large even-odd spacing and $g$-factor anisotropy in PbTe quantum dots
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• Spin-orbit-induced circulating currents in a semiconductor nanostructure
• Formation of Long Single Quantum Dots in High Quality InSb Nanowires Grown by Molecular Beam Epitaxy
• Electrically tunable three-dimensional g-factor anisotropy in single InAs self-assembled quantum dots
• Transport studies of electron-hole and spin-orbit interaction in GaSb/InAsSb core-shell nanowire quantum dots
• Waiting time distribution revealing the internal spin dynamics in a double quantum dot
• Coherent transport in a linear triple quantum dot made from a pure-phase InAs nanowire
• Hybrid Superconductor-Quantum Point Contact Devices using InSb Nanowires
• Transport across an Anderson quantum dot in the intermediate coupling regime
• Measurements of the spin-orbit interaction and Landé g factor in a pure-phase InAs nanowire double quantum dot in the Pauli spin-blockade regime
• Magnetic impurities in spin-split superconductors
• Exchange cotunneling through quantum dots with spin-orbit coupling
• Probing individual split Cooper-pairs using the spin qubit toolkit
• Highly tunable quadruple quantum dot in a narrow bandgap semiconductor InAs nanowire
• Electrical control of spins and giant g-factors in ring-like coupled quantum dots
• Magneto-transport Subbands Spectroscopy in InAs Nanowires
• Interplay of Coulomb interaction and spin-orbit effects in multi-level quantum dots
• Spin memory of the topological material under strong disorder
• Selective Area Superconductor Epitaxy to Ballistic Semiconductor Nanowires
• Nonequilibrium Cotunneling through a Three-Level Quantum Dot
• Geometric and compositional influences on spin-orbit induced circulating currents in nanostructures
• Magnetic degeneracy points in interacting two-spin systems: geometrical patterns, topological charge distributions, and their stability
• Shiba Bound States across the mobility edge in doped InAs nanowires
• Crystallization of fractional charges in a strongly interacting quasi-helical quantum dot
• Kondo effect and spin-active scattering in ferromagnet-superconductor junctions
• Assessing the potential of Ge/SiGe quantum dots as hosts for singlet-triplet qubits
• Magnetoresistence engineering and singlet/triplet switching in InAs nanowire quantum dots with ferromagnetic sidegates
• Charge states, triple points and quadruple points in an InAs nanowire triple quantum dot revealed by an integrated charge sensor
• Measurements of anisotropic g-factors for electrons in InSb nanowire quantum dots
• Spectroscopy and level detuning of few-electron spin states in parallel InAs quantum dots
• Singlet-triplet transition in a few-electron lateral InGaAs-InAlAs quantum dot
• Richardson model with complex level structure and spin-orbit coupling for hybrid superconducting islands: stepwise suppression of pairing and magnetic pinning
• Detection of charge states of an InAs nanowire triple quantum dot with an integrated nanowire charge sensor
• Spin and orbital fluctuations in non-equilibrium transport through quantum dots: A renormalisation-group analysis
• Selective tuning of spin-orbital Kondo contributions in parallel-coupled quantum dots
• Quantum transport in an ambipolar InSb nanowire quantum dot device
• Charge detection of a quantum dot under different tunneling barrier symmetries and bias voltages
• Gate-dependent spin-orbit coupling in multi-electron carbon nanotubes
• Yu-Shiba-Rusinov states in color superconducting quark matter