Electric and Magnetic Tuning Between the Trivial and Topological Phases in InAs/GaSb Double Quantum Wells

Abstract

Among the theoretically predicted two-dimensional topological insulators, InAs/GaSb double quantum wells (DQWs) have a unique double-layered structure with electron and hole gases separated in two layers, which enables tuning of the band alignment via electric and magnetic fields. However, the rich trivial-topological phase diagram has yet to be experimentally explored. We present an in situ and continuous tuning between the trivial and topological insulating phases in InAs/GaSb DQWs through electrical dual-gating. Furthermore, we show that an in-plane magnetic field shifts the electron and hole bands relatively to each other in momentum space, functioning as a powerful tool to discriminate between the topologically distinct states.

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• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• Quantum Spin Hall Effect in Inverted Type II Semiconductors
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• High mobility back-gated InAs/GaSb double quantum well grown on GaSb substrate

Cited by in corpus (63)

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• The Majorana spin in magnetic atomic chain systems
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• Large gap quantum spin Hall insulator, massless Dirac fermions and bilayer graphene analogue in InAs/Ga(In)Sb heterostructures
• Decoupling edge versus bulk conductance in the trivial regime of an InAs/GaSb double quantum well using Corbino ring geometry
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• Helical Liquids in Semiconductors
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• Electrical transport in nano-thick ZrTe${}_5$ sheets: from three to two dimensions
• Giant spin-orbit splitting in inverted InAs/GaSb double quantum wells
• Experimental Signatures of the Inverted Phase in InAs/GaSb Coupled Quantum Wells
• Spin-orbit interaction in a dual gated InAs/GaSb quantum well
• Stanene: A Good Platform for Topological Insulator and Topological Superconductor
• Anomalous Quantum Oscillations of Interacting Electron-hole Gases in Inverted Type-II InAs/GaSb Quantum Wells
• Single-edge transport in an InAs/GaSb quantum spin Hall insulator
• Robust Helical Edge Transport in Quantum Spin Hall Quantum Wells
• Mesoscopic transport in two-dimensional topological insulators
• Magnon-bipolar carrier drag thermopower in antiferromagnetic/ferromagnetic semiconductors: theoretical formulation and experimental evidence
• Gapless insulating edges of dirty interacting topological insulators
• Engineering quantum spin Hall insulators by strained-layer heterostructures
• First principles feasibility assessment of a topological insulator at the InAs/GaSb interface
• Hidden edge Dirac point and robust quantum edge transport in InAs/GaSb quantum wells
• Energy gap tuning and gate-controlled topological phase transition in InAs/In${}_x$Ga${}_{1-x}$Sb composite quantum wells
• The effect of in-plane magnetic field and applied strain in quantum spin Hall systems: application to InAs/GaSb quantum wells
• Materials considerations for forming the topological insulator phase in InAs/GaSb heterostructures
• A Topological SQUIPT based on helical edge states in proximity to superconductors
• Electron-hole interactions in coupled InAs-GaSb quantum dots based on nanowire crystal phase templates
• Probing helicity and the topological origins of helicity via non-local Hanbury-Brown and Twiss correlations
• Rashba interaction and local magnetic moments in a graphene-Boron Nitride heterostructure by intercalation with Au
• Rashba Sandwiches with Topological Superconducting Phases
• Lateral p-n Junction in an Inverted InAs/GaSb Double Quantum Well
• Electron-Hole Interference in an Inverted-Band Semiconductor Bilayer
• Localization-Driven Correlated States of Two Isolated Interacting Helical Edges
• Electric control of inverted gap and hybridization gap in type II InAs/GaSb quantum wells
• Gate-tunable Electronic Transport in p-type GaSb Quantum Wells
• Circular and Linear Photogalvanic Effects in Type-II GaSb/InAs Quantum Well Structures in the Inverted Regime
• Topological Charge/spin density Wave in InAs/GaSb Quantum Wells under an In-plane Magnetic Field
• Interplay of quantum spin Hall effect and spontaneous time-reversal symmetry breaking in electron-hole bilayers I: Transport properties
• Phase Slips and Parity Jumps in Quantum Oscillations of Inverted InAs/GaSb Quantum Wells
• Edgeless and Purely Gate-Defined Nanostructures in InAs Quantum Wells
• Interaction-induced crossover between weak anti-localization and weak localization in a disordered InAs/GaSb double quantum well
• Localization of trivial edge states in InAs/GaSb composite quantum wells
• Quantum spin Hall effect in III-V semiconductors at elevated temperatures: advancing topological electronics
• Coexistence of Topological and Normal Insulating Phases in Electro-Optically Tuned InAs/GaSb Bilayer Quantum Wells
• Electrically controlled crossing of energy levels in quantum dots in two-dimensional topological insulators
• Electric field-induced edge state oscillations in GaSb/InAs quantum wells
• Electrically controlled crossover between $2\pi$- and $4\pi$-Josephson effects through topologically-confined channels in silicene
• Theory and optimisation of radiative recombination in broken-gap InAs/GaSb superlattices
• Impact of epitaxial strain on the topological-nontopological phase diagram and semimetallic behavior of InAs/GaSb composite quantum wells
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• Finite temperature quantum noise correlations as a probe for topological helical edge modes
• Electrical tuning of helical edge states in topological multilayers
• Magneto-Induced Topological Phase Transition in Inverted InAs/GaSb Bilayers
• Electronic thermal conductivity in 2D topological insulator in a HgTe quantum well
• Fermi level tuning and band alignment in Mn doped InAs/GaSb
• Finite-temperature spectroscopy of dirty helical Luttinger liquids
• Unidirectional magneto-transport of linearly dispersing topological edge states
• Realization of independent contacts in barrier-separated InAs/GaSb quantum wells
• Engineering chiral-induced spin selectivity in an artificial topological quantum well
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