Topological insulators based on HgTe

Abstract

The most interesting experimental results obtained in studies of 2D and 3D topological insulators (TIs) based on HgTe quantum wells and films are reviewed. In the case of 2D TIs, these include the observation of nonlocal ballistic and diffusion transport, the magnetic breakdown of 2D TIs, and an anomalous temperature dependence of edge-channel resistance. In 3D TIs, a record-setting high mobility of surface two-dimensional Dirac fermions (DFs) has been attained. This enabled determining all the main TI parameters (the bulk gap and the density of DFs on both of its surfaces) and provided information on the phase of the Shubnikov - de Haas oscillations of DFs, which indicates the rigid topological coupling between the fermion spin and momentum. Prospects for further research are discussed in the conclusion.

18 pages, 24 figures

References in corpus (47)

• Topological Insulators
• Topological insulators and superconductors
• 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
• Topological invariants of time-reversal-invariant band structures
• Quantum Spin Hall Effect
• Nonlocal edge state transport in the quantum spin Hall state
• The Quantum Spin Hall Effect: Theory and Experiment
• Quantum Hall Effect from the Topological Surface States of Strained Bulk HgTe
• Observation of topological surface state quantum Hall effect in an intrinsic three-dimensional topological insulator
• Observation of Quantum Spin Hall States in InAs/GaSb Bilayers under Broken Time-Reversal Symmetry
• Giant Nonlocality near the Dirac Point in Graphene
• Dissipative Quantum Hall Effect in Graphene near the Dirac Point
• Imaging currents in HgTe quantum wells in the quantum spin Hall regime
• Helical edge resistance introduced by charge puddles
• Helical edge and surface states in HgTe quantum wells and bulk insulators
• Berry phase of non-ideal Dirac fermions in topological insulators
• Quantum Hall Effect on Top and Bottom Surface States of Topological Insulator (Bi1-xSbx)2Te3 Films
• Resistance of helical edges formed in a semiconductor heterostructure
• Transport in disordered two-dimensional topological insulator
• Transport properties of a 3D topological insulator based on a strained high mobility HgTe film
• Cyclotron Resonance Assisted Photocurrents in Surface States of a 3D Topological Insulator Based on a Strained High Mobility HgTe Film
• Magnetoconductance of the quantum spin Hall state
• Topological insulators from the Perspective of first-principles calculations
• Persistence of two-dimensional topological insulator state in wide HgTe quantum well
• Probing Spin Helical Surface States in Topological HgTe Nanowires
• Photogalvanic probing of helical edge channels in 2D HgTe topological insulators
• Probing quantum capacitance in a 3D topological insulator
• Temperature-driven single-valley Dirac fermions in HgTe quantum wells
• Nonlocal resistance and its fluctuations in microstructures of band-inverted HgTe/(Hg,Cd)Te quantum wells
• Linear magnetoresistance in HgTe quantum wells
• Terahertz Quantum Hall Effect in a Topological Insulator
• Spin-orbit splitting of valence and conduction bands in HgTe quantum wells near the Dirac point
• Terahertz Photogalvanic Spectroscopy of Three Dimensional Topological Insulators
• The valence band energy spectrum of HgTe quantum wells with inverted band structures
• Majorana state on the surface of a disordered 3D topological insulator
• Room temperature electrically tunable broadband terahertz Faraday effect
• Ballistic geometric resistance resonances in a single surface of a topological insulator
• Topological protection brought to light by the time-reversal symmetry breaking
• Shot noise of the edge transport in the inverted band HgTe quantum wells
• High-frequency nonlinear transport and photogalvanic effects in two-dimensional topological insulators
• Temperature-dependent magnetospectroscopy of HgTe quantum wells
• Transition from insulating to metallic phase induced by in-plane magnetic field in HgTe quantum wells
• Optical properties of helical edge channels in zinc-blende-type topological insulators: Selection rules, circular and linear dichroism, circular and linear photocurrents
• Cyclotron resonance induced photogalvanic effect in surface states of 200 nm thick strained HgTe films

Cited by in corpus (11)

• General relativity effects in precision spin experimental tests of fundamental symmetries
• Conductivity of two-dimensional narrow gap semiconductors subjected to strong Coulomb disorder
• Energy spectrum of semimetallic HgTe quantum wells
• Engineering topological phases in triple HgTe/CdTe quantum wells
• Conductivity of two-dimensional small gap semiconductors and topological insulators in strong Coulomb disorder
• Splitting of Dirac cones in HgTe quantum wells: Effects of crystallographic orientation, interface-, bulk-, and structure-inversion asymmetry
• Interaction-controlled transport in a two-dimensional massless-massive Dirac system: Transition from degenerate to nondegenerate regimes
• Thermoelectric transport in a three-dimensional HgTe topological insulator
• Tunable Topological Phases in Quantum Kirigamis
• Magnetotransport in a 2D Hybrid Band System: Dirac and Heavy Hole Interplay
• Semiclassical scattering by edge imperfections in topological insulators under magnetic field