Investigation of InAs based devices for topological applications
arXiv:1909.12021 · doi:10.1117/12.2527754
Abstract
Hybrid superconductor/semiconductor devices constitute a powerful platform to investigate the emergence of new topological state of matter. Among all possible semiconductor materials, InAs represents a promising choice, owing to its high quality, large g-factor and spin-orbit component. Here, we report on InAs-based devices both in one-dimensional and two-dimensional configurations. In the former, low-temperature measurements on a suspended nanowire are presented, inspecting the intrinsic spin-orbit contribution of the system. In the latter, Josephson Junctions between two Nb contacts comprising an InAs quantum well are investigated. Supercurrent flow is reported, with Nb critical temperature up to T_c~8K. Multiple Andreev reflection signals are observed in the dissipative regime. In both systems, we show that the presence of external gates represents a useful knob, allowing for wide tunability and control of device properties, such as spin-orbit coherence length or supercurrent amplitude.
arXiv comment6 pages, 5 figures (Proceeding of the SPIE conference)
References in corpus (46)
- Non-Abelian Anyons and Topological Quantum Computation
- Unpaired Majorana fermions in quantum wires
- Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
- Helical liquids and Majorana bound states in quantum wires
- New Perspectives for Rashba Spin-Orbit Coupling
- Exponential Protection of Zero Modes in Majorana Islands
- Coherent control of a single electron spin with electric fields
- Quasiclassical Green's function approach to mesoscopic superconductivity
- Gate-Controlled Spin-Orbit Quantum Interference Effects in Lateral Transport
- Exotic non-Abelian anyons from conventional fractional quantum Hall states
- Electric Dipole Induced Spin Resonance in Quantum Dots
- Universal topological quantum computation from a superconductor/Abelian quantum Hall heterostructure
- Two-dimensional epitaxial superconductor-semiconductor heterostructures: A platform for topological superconducting networks
- Topological phases with parafermions: theory and blueprints
- Spectroscopy of spin-orbit quantum bits in indium antimonide nanowires
- Quantum oscillations of the critical current and high-field superconducting proximity in ballistic graphene
- Supercurrent in the quantum Hall regime
- Superconducting Gatemon Qubit based on a Proximitized Two-Dimensional Electron Gas
- Quantized conductance doubling and hard gap in a two-dimensional semiconductor-superconductor heterostructure
- Inducing Superconducting Correlation in Quantum Hall Edge States
- Transparent Semiconductor-Superconductor Interface and Induced Gap in an Epitaxial Heterostructure Josephson Junction
- Induced superconductivity in high mobility two dimensional electron gas in GaAs heterostructures
- Exotic circuit elements from zero-modes in hybrid superconductor/quantum Hall systems
- Engineering Hybrid Epitaxial InAsSb/Al Nanowire Materials for Stronger Topological Protection
- Spin-triplet supercurrent carried by quantum Hall edge states through a Josephson junction
- Electrical tuning of Rashba spin-orbit interaction in multigated InAs nanowires
- Energy transport in an integrable parafermionic chain via generalized hydrodynamics
- Conduction Channels of an InAs-Al nanowire Josephson weak link
- Magnetically-driven colossal supercurrent enhancement in InAs nanowire Josephson junctions
- Two-dimensional electron gas formation in undoped In[0.75]Ga[0.25]As/In[0.75]Al[0.25]As quantum wells
- Transport Properties of Near Surface InAs Two-dimensional Heterostructures
- Vectorial control of the spin-orbit interaction in suspended InAs nanowires
- Spin precession and modulation in ballistic cylindrical nanowires due to the Rashba effect
- Coherent transport properties of a three-terminal hybrid superconducting interferometer
- Non-Abelian BF theory for 2+1 dimensional topological states of matter
- Anyonic tight-binding models of parafermions and of fractionalized fermions
- Multiple quasiparticle Hall spectroscopy investigated with a resonant detector
- Josephson Currents in Quantum Hall Devices
- Anti-crossings of spin-split Landau levels in an InAs two-dimensional electron gas with spin-orbit coupling
- Parafermion supporting platform based on spin transitions in the fractional quantum Hall effect regime
- Full electrostatic control of quantum interference in an extended trenched Josephson junction
- Proximity effect in a two dimensional electron gas probed with a lateral quantum dot
- Josephson coupling through one-dimensional ballistic channel in semiconductor-superconductor hybrid quantum point contacts
- A ballistic two-dimensional-electron-gas Andreev interferometer
- Quasiparticle entropy in superconductor/normal metal/superconductor proximity junctions in the diffusive limit
- Resonant subgap current transport in Josephson field effect transistor