Spin and Charge Transport on the Surface of a Topological Insulator

Abstract

We derive diffusion equations, which describe spin-charge coupled transport on the helical metal surface of a three-dimensional topological insulator. The main feature of these equations is a large magnitude of the spin-charge coupling, which leads to interesting and observable effects. In particular, we predict a new magnetoresistance effect, which manifests in a nonohmic correction to a voltage drop between a ferromagnetic spin-polarized electrode and a nonmagnetic electrode, placed on top of the helical metal. This correction is proportional to the cross-product of the spin polarization of the ferromagnetic electrode and the charge current between the two electrodes. We also demonstrate tunability of this effect by applying a gate voltage, which makes it possible to operate the proposed device as a transistor.

4 pages, 1 figure; published version

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Cited by in corpus (132)

• Topological insulators and superconductors
• Topological Insulator Materials
• Spin Transfer Torque Generated by the Topological Insulator Bi_2Se_3
• Interface-Induced Phenomena in Magnetism
• First-principles calculations of charge carrier mobility and conductivity in bulk semiconductors and two-dimensional materials
• Tolerance of topological surface states towards magnetic moments: Fe on Bi2Te3 and Bi2Se3
• Two-dimensional surface charge transport in topological insulators
• Electrical detection of the spin polarization due to charge flow in the surface state of the topological insulator Bi_1.5 Sb_0.5 Te_1.7 Se_1.3
• Electrical control of magnetism by electric field and current-induced torques
• Room Temperature Electrical Detection of Spin Polarized Currents in Topological Insulators
• Ultrafast Spin-To-Charge Conversion at the Surface of Topological Insulator Thin Films
• Transport in three-dimensional topological insulators: theory and experiment
• Nonlinear planar Hall effect
• Electric charging of magnetic textures on the surface of a topological insulator
• Quantum frequency doubling in the topological insulator Bi2Se3
• Electrical injection and detection of spin-polarized currents in topological insulator Bi2Te2Se
• Spin-Polarized Tunneling Study on Spin-Momentum Locking in the Topological Insulators
• Magnetoelectrics in Disordered Topological Insulator Josephson Junctions
• Josephson Junction through a Disordered Topological Insulator with Helical Magnetization
• Dirac Spin-Orbit Torques at the Surface of Topological Insulators
• Parallel magnetic field driven quantum phase transition in a thin topological insulator film
• Magnetotransport properties and evidence of topological insulating state in LaSbTe
• Band structure and spin texture of Bi${}_2$Se${}_3$/3d ferromagnetic metal interface
• Tunable Giant Spin Hall Conductivities in a Strong Spin-Orbit Semimetal: Bi${}_{1-x}$Sb${}_x$
• Unraveling photoinduced spin dynamics in topological insulator Bi2Se3
• Hybrid helical state and superconducting diode effect in S/F/TI heterostructures
• Switching of Charge-Current-Induced Spin Polarization in the Topological Insulator BiSbTeSe2
• Thin topological insulator film in a perpendicular magnetic field
• Topological insulator based spin valve devices: evidence for spin polarized transport of spin-momentum-locked topological surface states
• Electron-phonon mediated heat flow in disordered graphene
• Benchmarking of spin-orbit torque switching efficiency in Pt alloys
• Magnetic-proximity-induced magnetoresistance on topological insulators
• Spin-Torque Generation in Topological-Insulator-Based Heterostructures
• Unusual magnetoresistance in a topological insulator with a single ferromagnetic barrier
• Spontaneous supercurrent and $\varphi$0 phase shift parallel to magnetized topological insulator interfaces
• Collective excitations on a surface of topological insulator
• Spintronics and spincaloritronics in topological insulators
• Terahertz signatures of ultrafast Dirac fermion relaxation at the surface of topological insulators at room temperature
• In-plane Topological p-n Junction in the Three-Dimensional Topological Insulator Bi${}_{2-x}$Sb${}_x$Te${}_{3-y}$Se${}_y$
• Direct comparison of current-induced spin polarization in topological insulator Bi2Se3 and InAs Rashba states
• Transverse magnetic heat transport on the topological surface
• Topological insulator Bi2Se3 thin films as an alternative channel material in MOSFETs
• Josephson and proximity effects on the surface of a topological insulator
• Magnetic properties of a two-dimensional electron gas strongly coupled to light
• Boosting spintronics with superconductivity
• Spin-Charge Locking and Tunneling into a Helical Metal
• Excitons and Optical Absorption on the Surface of a Strong Topological Insulator with a Magnetic Energy Gap
• Control of spin dynamics in a two-dimensional electron gas by electromagnetic dressing
• Magnetoelectric effects in Josephson junctions
• Improved Domain Wall Dynamics and Magnonic Torques using Topological Insulators
• Spin-Seebeck effect on the surface of topological insulator due to nonequilibrium spin-polarization parallel to the direction of thermally driven electronic transport
• Engineering topological surface-states: HgS, HgSe and HgTe
• Energy spectrum and broken spin-surface locking in topological insulator quantum dots
• Spin-polarized tunneling current through a thin film of topological insulator in a parallel magnetic field
• Electromagnetic spin polarization on the surface of topological insulator
• Spin diffusion and magnetoresistance in ferromagnet/topological-insulator junctions
• Surface plasmon polaritons in topological insulator
• Reading charge transport from spin dynamics on the surface of topological insulator
• Giant magnetoresistance in the junction of two ferromagnets on the surface of diffusive topological insulators
• Topological charge pumping effect by the magnetization dynamics on the Surface of Three-Dimensional Topological Insulators
• Edge states of a three-dimensional topological insulator
• Interpreting current-induced spin polarization in topological insulator surface states
• Spin injection into a metal from a topological insulator
• Spin Transfer Torque and Electric Current in Helical Edge States in Quantum Spin Hall Devices
• Transport across a junction of topological insulators and a superconductor
• Van der Waals heterostructures with spin-orbit coupling
• Microscopic derivation of magnon spin current in a topological insulator/ferromagnet heterostructure
• Hot-carrier transport and spin relaxation on the surface of topological insulator
• Dirac electrons and domain walls: a realization in junctions of ferromagnets and topological insulators
• Magnetization reversal in S/F/S Josephson junctions on a 3D topological insulator
• Mott scattering at the interface between a metal and a topological insulator
• Quantum capacitance of an ultrathin topological insulator film in a magnetic field
• Universal scaling for the spin-electricity conversion on surface states of topological insulators
• Dynamics of domain-wall Dirac fermions on a topological insulator: a chiral fermion beam splitter
• Interface symmetry and spin control in topological insulator-semiconductor heterostructures
• Optically tunable spin transport on the surface of a topological insulator
• Spin and charge transport induced by a twisted light beam on a surface of a topological insulator
• Interface Metallic States between a Topological Insulator and a Ferromagnetic Insulator
• Electrically controllable spin filtering based on superconducting helical states
• Spin-charge transport driven by magnetization dynamics on disordered surface of doped topological insulators
• Transmission Line Model for Materials with Spin-Momentum Locking
• Superconducting proximity effect in $d$-wave cuprate/ graphene heterostructures
• Gate-defined coupled quantum dots in topological insulators
• Long-range interaction of magnetic moments in a coupled system of S/F/S Josephson junctions with anomalous ground-state phase shift
• Spin Conduction in Anisotropic 3-D Topological Insulators
• Edelstein and inverse Edelstein effects caused by the pristine surface states of topological insulators
• Transport in magnetically doped topological insulators: Effects of magnetic clusters
• Electrical response of S-F-TI-S junctions on magnetic texture dynamics
• Asymptotically exact photonic analogues of chiral symmetric topological tight-binding models
• Exchange-Driven Intermixing of Bulk and Topological Surface State by Chiral Excitons in Bi2Se3
• Confining electrons on a topological insulator surface using potentials and a magnetic field
• Coulomb drag in topological insulator films
• Controllable magnetic states in chains of coupled phi-0 Josephson junctions with ferromagnetic weak links
• Dielectric capping effects on binary and ternary topological insulator surface states
• Conductance of gated junctions as a probe of topological interface states
• Single atom anisotropic magnetoresistance on a topological insulator surface
• Disorder Induced Anomalous Hall Effect in Type-I Weyl Metals: Connection between the Kubo-Streda Formula in the Spin and Chiral basis
• Spin Transport and Accumulation in 2D Weyl Fermion System
• Theory of spin-charge-coupled transport in proximitized graphene: An SO(5) algebraic approach
• Charge-pseudospin coupled diffusion in semi-Dirac graphene: pseudospin assisted valley transport
• Voltage-Controlled Topological-Spin Switch for Ultra-Low-Energy Computing--Performance Modeling and Benchmarking
• Control of Spin Diffusion and Suppression of the Hanle Effect by the Coexistence of Spin and Valley Hall Effects
• Coulomb drag in topological materials
• Theory of Spin Injection in Two-dimensional Metals with Proximity-Induced Spin-Orbit Coupling
• Current-Induced Spin Accumulation and Magnetoresistance in Chiral Semimetals
• Spin-torque resonance due to diffusive dynamics at a surface of topological insulator
• Electron transport in a ferromagnetic/normal/ferromagnetic tunnel junction based on the surface of a topological insulator
• Transport in a thin topological insulator with potential and magnetic barriers
• Large Magnetoresistance at Room Temperature in Ferromagnet/Topological Insulator Contacts
• Tunable spin-charge conversion through topological phase transitions in zigzag nanoribbons
• Gate controlled spin pumping at a quantum spin Hall edge
• Detection of current induced spin polarization in epitaxial Bi${}_2$Te${}_3$ thin film
• Unconventional Spin Hall Effect and Axial Current Generation in a Dirac Semimetal
• Quantum Capacitance of a Topological Insulator-Ferromagnet Interface
• Surface state transport in double-gated and magnetized topological insulators with hexagonal warping effects
• A toy model for quantum spin Hall effect
• High-field charge transport on the surface of Bi${}_2$Se${}_3$
• Non-orthogonal Spin-Momentum Locking
• Spin-charge coupled transport in van der Waals systems with random tunneling
• Gate-controlled Spin Extraction from Topological Insulator Surfaces
• Entropy Driven Inductive Response of Topological Insulators
• Giant resonant skew scattering of plasma waves in a two-dimensional electron gas
• Particle-hole asymmetry and quantum confinement effects on the magneto-optical response of topological insulator thin-films
• Hybridization and Field Driven Phase Transitions in Hexagonally Warped Topological Insulators
• Promoted current-induced spin polarization in inversion symmetry broken topological insulator thin films
• Determination of Out-of-plane Spin Polarization of Topological Surface States by Spin Hall Effect Tunneling Spectroscopy
• Spin Response to Localized Pumps: Exciton Polaritons Versus Electrons and Holes
• Ultrafast electronic heat dissipation through surface-to-bulk Coulomb coupling in quantum materials
• Hybrid collective excitations in topological superconductor/ferromagnetic insulator heterostructures
• Moiré Folded Helical States at the Interfaces of Heterostructures
• Anomalous phase shift and superconducting diode effect in Josephson junctions via thin films of rare-earth intermetallic magnets
• Current response of a topological insulator to a static Zeeman field