Observation of Aharonov-Bohm effect in PbTe nanowire networks

Abstract

We report phase coherent electron transport in PbTe nanowire networks with a loop geometry. Magneto-conductance shows Aharonov-Bohm (AB) oscillations with periods of $h/e$ and $h/2e$ in flux. The amplitude of $h/2e$ oscillations is enhanced near zero magnetic field, possibly due to interference between time-reversal paths. Temperature dependence of the AB amplitudes suggests a phase coherence length $\sim$ 8 - 12 $\mu$m at 50 mK. This length scale is larger than the typical geometry of PbTe-based hybrid semiconductor-superconductor nanowire devices.

arXiv commentRaw data and processing codes within this paper are available at https://zenodo.org/record/5798424

References in corpus (27)

• Fault-tolerant quantum computation by anyons
• Non-Abelian Anyons and Topological Quantum Computation
• Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
• Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
• Helical liquids and Majorana bound states in quantum wires
• Exponential Protection of Zero Modes in Majorana Islands
• Majorana bound states in a coupled quantum-dot hybrid-nanowire system
• Scalable Designs for Quasiparticle-Poisoning-Protected Topological Quantum Computation with Majorana Zero Modes
• From Andreev to Majorana bound states in hybrid superconductor-semiconductor nanowires
• Electron Teleportation via Majorana Bound States in a Mesoscopic Superconductor
• Ballistic Majorana nanowire devices
• Majorana box qubits
• Physical mechanisms for zero-bias conductance peaks in Majorana nanowires
• Next steps of quantum transport in Majorana nanowire devices
• Braiding without Braiding: Teleportation-Based Quantum Information Processing with Majorana Zero Modes
• Disorder-induced zero-bias peaks in Majorana nanowires
• Selective Area Grown Semiconductor-Superconductor Hybrids: A Basis for Topological Networks
• Estimating disorder and its adverse effects in semiconductor Majorana nanowires
• Selective-area chemical beam epitaxy of in-plane InAs one-dimensional channels grown on InP(001), InP(111)B, and InP(110) surfaces
• Charge impurity effects in hybrid Majorana nanowires
• In-plane selective area InSb-Al nanowire quantum networks
• Large zero bias peaks and dips in a four-terminal thin InAs-Al nanowire device
• Selective area epitaxy of PbTe-Pb hybrid nanowires on a lattice-matched substrate
• Numerical study of PbTe-Pb hybrid nanowires for engineering Majorana zero modes
• Partially-separated Majorana modes in a disordered medium
• Disorder suppression and precise conductance quantization in constrictions of PbTe quantum wells
• Quantum ballistic transport in constrictions of n-PbTe

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• Recent progress on Majorana in semiconductor-superconductor heterostructures--Engineering and detection
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• Proximity effect in PbTe-Pb hybrid nanowire Josephson junctions
• Ballistic PbTe Nanowire Devices
• Selective-Area-Grown PbTe-Pb Planar Josephson Junctions for Quantum Devices
• Hard superconducting gap in PbTe nanowires
• Gate-tunable subband degeneracy in semiconductor nanowires
• Reducing disorder in PbTe nanowires for Majorana research
• SQUID oscillations in PbTe nanowire networks
• Quantized Andreev conductance in semiconductor nanowires
• Anisotropy of PbTe nanowires with and without a superconductor
• Enhanced superconductivity in PbTe-In hybrids
• Strong enhancement of g-factor in PbTe-Pb hybrid nanowires
• Presence versus absence of charging energies in PbTe quantum dots
• Gate-tunable superconductor-semiconductor coupling and its impact on zero-energy modes in PbTe-Pb nanowires
• Growth and fabrication of advanced PbTe-Pb quantum devices