Devices with electrically tunable topological insulating phases

Abstract

Solid-state topological insulating phases, characterized by spin-momentum locked edge modes, provide a powerful route for spin and charge manipulation in electronic devices. We propose to control charge and spin transport in the helical edge modes by electrically switching the topological insulating phase in a HgTe/CdTe double quantum well device. We introduce the concept of a topological field-effect-transistor and analyze possible applications to a spin battery, which also realize a set up for an all-electrical investigation of the spin-polarization dynamics in metallic islands.

6 pages, 4 figures, final version

References in corpus (26)

• Quantum Spin Hall Effect in Graphene
• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• $Z_2$ Topological Order and the Quantum Spin Hall Effect
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• Quantum Spin Hall Effect in Silicene
• Topological invariants of time-reversal-invariant band structures
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• Quantum Spin Hall Effect and Enhanced Magnetic Response by Spin-Orbit Coupling
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• Spin effects in ferromagnetic single-electron transistors
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• Topological Phase Transition and Electrically Tunable Diamagnetism in Silicene
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• Electrical switching and interferometry of massive Dirac particles in topological insulators constrictions
• Charge-spin duality in non-equilibrium transport of helical liquids
• Spin current and accumulation generated by spin Hall insulator
• Tunable quantum spin Hall effect in double quantum wells
• Signatures of Rashba spin-orbit interaction in the superconducting proximity effect in helical Luttinger liquids
• Coherent Oscillations and Giant Edge Magnetoresistance in Singly Connected Topological Insulators
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Cited by in corpus (29)

• Quantum Spin Hall Effect and Topological Field Effect Transistor in Two-Dimensional Transition Metal Dichalcogenides
• Atomically Thin Quantum Spin Hall Insulators
• On-Demand Spin-Orbit Interaction from Which-Layer Tunability in Bilayer Graphene
• Phase transitions in two tunnel-coupled HgTe quantum wells. Bilayer graphene analogy and beyond
• Kramers pairs of Majorana corner states in a topological insulator bilayer
• Ab initio study of $Z_2$ topological phases in perovskite (111) $({\text{SrTiO}}_3{)}_7/({\text{SrIrO}}_3{)}_2$ and $({\text{KTaO}}_3{)}_7/({\text{KPtO}}_3{)}_2$ multilayers
• Stabilizing an atomically thin quantum spin Hall insulator at ambient conditions: Graphene-intercalation of indenene
• Formation and detection of Majorana modes in quantum spin Hall trenches
• Pure spin current devices based on ferromagnetic topological insulators
• Chiral Majorana edge states in HgTe quantum wells
• Spin textures of strongly correlated spin Hall quantum dots
• Two-dimensional topological insulator state in double HgTe quantum well
• Magnetotransport in Double Quantum Well with Inverted Energy Spectrum: HgTe/CdHgTe
• Unconventional Reentrant Quantum Hall Effect in a HgTe/CdHgTe Double Quantum Well
• Magnetic AC control of the spin textures in a helical Luttinger liquid
• Engineering topological phases in triple HgTe/CdTe quantum wells
• Single-Electron Transistor Made of a 3D Topological Insulator Nanoplate
• Magnetic topological transistor exploiting layer-selective transport
• The invisible Majorana bound state at the helical edge
• Transport signatures of a Floquet topological transition at the helical edge
• Correlation and current anomalies in helical quantum dots
• Backscattering off a driven Rashba impurity at the helical edge
• Charge and spin density in the helical Luttinger liquid
• Effects of the Vertices on the Topological Bound States in a Quasicrystalline Topological Insulator
• Conductance oscillations of antiferromagnetic layer tunnel junctions
• Anomalous flux periodicity in proximitised quantum spin Hall constrictions
• Detection of fractional solitons in quantum spin Hall systems
• Tunable effective length of fractional Josephson junctions
• Strongly Correlated Transport in Topological Y-Junction Devices