Spatial imaging of the spin Hall effect and current-induced polarization in two-dimensional electron gases

Abstract

Spin-orbit coupling in semiconductors relates the spin of an electron to its momentum and provides a pathway for electrically initializing and manipulating electron spins for applications in spintronics and spin-based quantum information processing. This coupling can be regulated with quantum confinement in semiconductor heterostructures through band structure engineering. Here we investigate the spin Hall effect and current-induced spin polarization in a two-dimensional electron gas confined in (110) AlGaAs quantum wells using Kerr rotation microscopy. In contrast to previous measurements, the spin Hall profile exhibits complex structure, and the current-induced spin polarization is out-of-plane. The experiments map the strong dependence of the current-induced spin polarization to the crystal axis along which the electric field is applied, reflecting the anisotropy of the spin-orbit interaction. These results reveal opportunities for tuning a spin source using quantum confinement and device engineering in non-magnetic materials.

Accepted for publication (2005)

References in corpus (5)

• Dissipationless Quantum Spin Current at Room Temperature
• Current induced electron spin polarization in strained semiconductors
• Dissipation effects in spin-Hall transport of electrons and holes
• Electrical initialization and manipulation of electron spins in an L-shaped strained n-InGaAs channel
• Control of Electron Spin Coherence Using Landau Level Quantization in a Two-Dimensional Electron Gas

Cited by in corpus (218)

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• Observation of the inverse spin Hall effect in silicon
• Spin currents and spin superfluidity
• Quantum transport in Rashba spin-orbit materials: A review
• Current-Induced Polarization and the Spin Hall Effect at Room Temperature
• Evolution of the spin Hall effect in Pt nanowires: Size and temperature effects
• Magneto-Optical Detection of the Spin Hall Effect in Pt and W Thin Films
• Transport Properties and Diamagnetism of Dirac Electrons in Bismuth
• Imaging mesoscopic spin Hall flow: Spatial distribution of local spin currents and spin densities in and out of multiterminal spin-orbit coupled semiconductor nanostructures
• Spin Hall Effect in Doped Semiconductor Structures
• Influence of a Transport Current on Magnetic Anisotropy in Gyrotropic Ferromagnets
• Group-theoretical classification of multipole order: emergent responses and candidate materials
• Generating Spin Currents in Semiconductors with the Spin Hall Effect
• Current-induced Orbital and Spin Magnetizations in Crystals with Helical Structure
• Transport through anisotropic magnetic molecules with partially ferromagnetic leads: Spin-charge conversion and negative differential conductance
• Spin-orbit interaction in symmetric wells with two subbands
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• Magneto-Electric Effect in Three-dimensional Coupled Zigzag Chains
• Persistent spin current in nano-devices and definition of the spin current
• Spin and orbital Edelstein effect in an oxide two-dimensional electron gas: theory and application to AlO${}_x$/SrTiO${}_3$
• Anisotropic spin Hall effect from first principles
• Magneto-gyrotropic effects in semiconductor quantum wells (review)
• Spin Nernst effect and Nernst effect in two-dimensional electron systems
• Unconventional Bose-Einstein Condensations Beyond the "No-node" Theorem
• Non-diffusive spin dynamics in a two-dimensional electron gas
• Intrinsic Spin Hall Effect Induced by Quantum Phase Transition in HgCdTe Quantum Wells
• Spin Hall Effect
• The translational side of topological band insulators
• Chirality-Induced Electrical Generation of Magnetism in Nonmagnetic Elemental Tellurium
• Electric Dipole Induced Spin Resonance in Disordered Semiconductors
• Tunable Giant Spin Hall Conductivities in a Strong Spin-Orbit Semimetal: Bi${}_{1-x}$Sb${}_x$
• Spin Accumulation in the Extrinsic Spin Hall Effect
• Valley-dependent spin transport in monolayer transition-metal dichalcogenides
• Generation of spin currents and spin densities in systems with reduced symmetry
• Electrical Measurement of the Direct Spin Hall Effect in Fe/In_xGa_{1-x}As Heterostructures
• Optical properties of massive anisotropic tilted Dirac systems
• Spin-Hall effect: Back to the Beginning on a Higher Level
• Electric field-driven coherent spin reorientation of optically generated electron spin packets in InGaAs
• Experimental realization of a silicon spin field-effect transistor
• Mesoscopic Spin Hall Effect
• Theory of Spin Hall Magnetoresistance from a Microscopic Perspective
• g-Factor Tuning and Manipulation of Spins by an Electric Current
• Consistency in Formulation of Spin Current and Torque Associated with a Variance of Angular Momentum
• Observation of intrinsic inverse spin Hall effect
• Interplay between carrier and impurity concentrations in annealed Ga${}_{1-x}$Mn${}_x$As intrinsic anomalous Hall Effect
• Spin transport of indirect excitons in GaAs coupled quantum wells
• Pancharatnam-Berry phase and kinetic magnetoelectric effect in a three-dimensional helical crystal (Te)
• Double quantum dot as detector of spin bias
• Spin transport of indirect excitons
• Theory of coupled spin-charge transport due to spin-orbit interaction in inhomogeneous two-dimensional electron liquids
• Ambipolar spin diffusion and D'yakonov-Perel' spin relaxation in GaAs quantum wells
• Study of intrinsic spin and orbital Hall effects in Pt based on a (6s, 6p, 5d) tight-binding model
• Anisotropic Optical Spin Hall Effect in Semiconductor Microcavities
• Ballistic spin transport in the presence of interfaces with strong spin-orbit coupling
• Theory of conserved spin current and its application to two dimensional hole gas
• Theory of current-induced spin polarizations in an electron gas
• Intrinsic Spin Hall Effect in the presence of Extrinsic Spin-Orbit Scattering
• Coulomb corrections to the extrinsic spin-Hall effect of a two-dimensional electron gas
• Observation of electric current induced by optically injected spin current
• Side-jumps in the spin-Hall effect: construction of the Boltzmann collision integral
• Tuning the Spin Hall Effect in a Two-Dimensional Electron Gas
• Absence of skew scattering in two-dimensional systems: Testing the origins of the anomalous Hall effect
• Detection of current-induced spins by ferromagnetic contacts
• Current-induced spin polarization in graphene due to Rashba spin-orbit interaction
• Self-organized pseudo-graphene on grain boundaries in topological band insulators
• RKKY interaction in a disordered two-dimensional electron gas with Rashba and Dresselhaus spin-orbit couplings
• Detection of spin polarized currents in quantum point contacts via transverse electron focusing
• Quantized Anomalous Hall Insulator in a Nanopatterned Two-Dimensional Electron Gas
• Spin Hall effect in the kagome lattice with Rashba spin-orbit interaction
• Beating of Friedel oscillations induced by spin-orbit interaction
• "Phase Diagram" of the Spin Hall Effect
• Spin-Hall effect and spin-Coulomb drag in doped semiconductors
• Spin Hall effect and zitterbewegung in an electron waveguide
• Current-induced orbital magnetization in systems without inversion symmetry
• Spin-Hall effect in a [110] quantum well
• The Intrinsic Spin Hall Conductivity in a Generalized Rashba Model
• Direct coupling between charge current and spin polarization by extrinsic mechanisms in graphene
• Spin polarizations and spin Hall currents in a two-dimensional electron gas with magnetic impurities
• Spin-Hall edge spin polarization in a ballistic 2D electron system
• Kubo-Bastin approach for the spin Hall conductivity of decorated graphene
• Current-Induced Spin Polarization in Gallium Nitride
• Current-induced spin polarization at the surface of metallic films: a theorem and an ab initio calculation
• Spin orientation by electric current in (110) quantum wells
• Thermally-induced spin polarization of a two dimensional electron gas
• Stroboscopic wavepacket description of non-equilibrium many-electron problems
• Intrinsic spin Hall effect in noncubic crystals
• Dynamic spin-Hall effect and driven spin helix for linear spin-orbit interactions
• On the nature of steady states of spin distributions in the presence of spin-orbit interactions
• Spontaneous spin accumulation in singlet-triplet Josephson junctions
• Zeeman ratchets: pure spin current generation in mesoscopic conductors with non-uniform magnetic fields
• Nature of Spin Hall Effect in a finite Ballistic Two-Dimensional System with Rashba and Dresselhaus spin-orbit interaction
• Spin-Current-Induced Charge Accumulation and Electric Current in Semiconductor Nanostructures with Rashba Spin-Orbit Coupling
• Anomalous spin precession and spin Hall effect in semiconductor quantum wells
• Frequency dependence of induced spin polarization and spin current in quantum wells
• Exact Landau Levels in Two-Dimensional Electron Systems with Rashba and Dresselhaus Spin-Orbit Interactions in a Perpendicular Magnetic Field
• 35% magnetocurrent with spin transport through Si
• Coulomb-driven organization and enhancement of spin-orbit fields in collective spin excitations
• Spin Accumulation in Diffusive Conductors with Rashba and Dresselhaus Spin-Orbit Interaction
• Moiré lattice effects on the orbital magnetic response of twisted bilayer graphene and Condon instability
• Spin galvanic effect at the conducting SrTiO3 surfaces
• Probing one-dimensional systems via noise magnetometry with single spin qubits
• Opposite spin accumulations on the transverse edges by the confining potential
• Kinetic orbital moments and nonlocal transport in disordered metals with nontrivial geometry
• Ultrafast supercontinuum fiber-laser based pump-probe scanning MOKE microscope for the investigation of electron spin dynamics in semiconductors at cryogenic temperatures with picosecond time and micrometer spatial resolution
• Spin-Orbit-Induced Spin, Charge, and Energy Transport in Diffusive Superconductors
• Boundary conditions for spin and charge diffusion in the presence of interfacial spin-orbit coupling
• Cyclotron effect on coherent spin precession of two-dimensional electrons
• Resonant intrinsic spin Hall effect in p-type GaAs quantum well structure
• Current-induced spin polarization in spin-orbit-coupled two-dimensional electron systems
• Extracting current-induced spins: spin boundary conditions at narrow Hall contacts
• Current-induced Spin Polarization in Two-Dimensional Hole Gas
• From materials to systems: a multiscale analysis of nanomagnetic switching
• Spin Hall Drag
• Resonant spin polarization and spin current in a two-dimensional electron gas
• Strong enhancement of the Edelstein effect in f-electron systems
• Self-current induced spin-orbit torque in FeMn/Pt multilayers
• Anisotropy of spin relaxation and transverse transport in metals
• Macroscopic transverse drift of long current-induced spin coherence in two-dimensional electron gases
• Giant mesoscopic spin Hall effect on surface of topological insulator
• Current-induced spin polarization of a magnetized two-dimensional electron gas with Rashba spin-orbit interaction
• Light Induced Hall effect in semiconductors with spin-orbit coupling
• Mesoscopic Spin-Hall Effect in 2D electron systems with smooth boundaries
• Magnetic field effects on a nanowire with inhomogeneous Rashba spin-orbit coupling: Spin properties at equilibrium
• Orbital Edelstein effect from density-wave order
• Spin-vorticity coupling in viscous electron fluids
• Magnetic Field Control of the Optical Spin Hall Effect
• Electrical probing of the spin conductance of mesoscopic cavities
• All-electrical time-resolved spin generation and spin manipulation in n-InGaAs
• Extrinsic spin Nernst effect in two-dimensional electron systems
• Spin Hall effect due to intersubband-induced spin-orbit interaction in symmetric quantum wells
• Ultrafast extrinsic spin-Hall currents
• Magneto-orbital effect without spin-orbit interactions --- noncentrosymmetric zeolite-templated carbon structure
• Momentum-Space Spin Antivortex and Spin Transport in Monolayer Pb
• Bulk electron spin polarization generated by the spin Hall current
• Spin Hall effect in a Kagome lattice driven by Rashba spin-orbit interaction
• Magnetic breakdown of cyclotron orbits in systems with Rashba and Dresselhaus spin-orbit coupling
• Kinetic theory of spin-polarized systems in electric and magnetic fields with spin-orbit coupling: I. Kinetic equation and anomalous Hall and spin-Hall effects
• Giant Collective Spin-Orbit Field in a Quantum Well: Fine Structure of Spin Plasmons
• Extrinsic Entwined with Intrinsic Spin Hall Effect in Disordered Mesoscopic Bars
• Theory of Unconventional Spin States in Surfaces with Non-Rashba Spin-Orbit Interaction
• A proposal for the measurement of Rashba and Dresselhaus spin-orbit interaction strengths in a single sample
• Intrinsic spin-Hall accumulation in honeycomb lattices: Band structure effects
• What can we learn about the dynamics of transported spins by measuring shot noise in spin-orbit-coupled nanostructures?
• Unified Semi-Classical Description of Intrinsic Spin-Hall Effect in Spintronic, Optical, and Graphene Systems
• Resonant optical control of the electrically-induced spin polarization by periodic excitation
• Theory of frequency-dependent spin current noise through correlated quantum dots
• Kinetic investigation on extrinsic spin Hall effect induced by skew scattering
• Intrinsic Spin Swapping
• Hall Voltage with the Spin Hall Effect
• Current-induced spin polarization for a general two-dimensional electron system
• Nonequilibrium spin transport on Au(111) surfaces
• Edge-induced spin polarization in two-dimensional electron gas
• Thermally-induced spin polarization in a magnetized two-dimensional electron gas with Rashba spin-orbit interaction
• Anomalous spin Hall effects in Dresselhaus (110) quantum wells
• Surface states, Friedel oscillations, and spin accumulation in p-doped semiconductors
• Collective spin modes in Fermi liquids with spin-orbit coupling
• Spin Hall Conductance of the Two Dimensional Hole Gas in a Perpendicular Magnetic Field
• Interplay between quantum dissipation and an in-plane magnetic field in the spin ratchet effect
• Strain Engineering of the Intrinsic Spin Hall Conductivity in a SrTiO${}_3$ Quantum Well
• Imaging of lateral spin valves with soft X-ray microscopy
• Topological-Berry-phase-induced spin torque current in a two-dimensional system with generic $k$-linear spin-orbit interaction
• Formation of double ring patterns on Co2MnSi Heusler alloy thin film by anodic oxidation under scanning probe microscope
• All-Optical Generation and Tuning of Ultrafast Spin-Hall Current via Optical Vortices
• Spin accumulation from the non-Abelian Aharonov-Bohm effect
• Non-magnetic Stern-Gerlach Experiment from Electron Diffraction
• Current in a Spin-orbit-coupling System
• Spin-charge conversion in disordered two-dimensional electron gases lacking inversion symmetry
• Nonlocal magnetolectric effects in diffusive conductors with spatially inhomogeneous spin-orbit coupling
• Resonant Spin Polarization and Hall Effects in a Two-Dimensional Electron Gas
• Compact cryogenic Kerr microscope for time-resolved studies of electron spin transport in microstructures
• Theory of resonant spin Hall effect
• Spin and Charge Shot Noise in Mesoscopic Spin Hall Systems
• Intertwining of lasing and superradiance under spintronic pumping
• Current-induced spin polarization in InGaAs and GaAs epilayers with varying doping densities
• `Spin-Spin' Hall Effect in Two-Dimensional Electron Systems with Spin-Orbit Interaction
• Macroscopic transport of a current-induced spin polarization
• Dynamical precession of spin in the two-dimensional spin-orbit coupled systems
• Charge and spin transport in nanoscopic structures with spin-orbit coupling
• Intrinsic Spin Hall Effect: Topological Transitions in Two-Dimensional Systems
• Frequency- and transverse wave-vector-dependent spin Hall conductivity in two-dimensional electron gas with disorder
• Theory of Spin Hall Effects in Semiconductors
• Thermally Assisted Spin Hall Effect
• Influence of inelastic relaxation time on intrinsic spin Hall effects in a disordered two-dimensional electron gas
• Local spin density in two-dimensional electron gas with hexagonal boundary
• Magnetic scattering with spin-momentum locking: Single scatterers and diffraction grating
• Current-induced spin polarization at metallic surfaces from first-principles
• Current-induced spin orientation in semiconductors and low-dimensional structures
• Spin current induced by the sound wave
• The influence of anisotropic Rashba spin-orbit coupling on current-induced spin polarization in graphene
• Anomalous enhancement of spin Hall conductivity in superconductor/normal metal junction
• Driving spin and charge in quantum wells by surface acoustic waves
• Terahertz out-of-plane resonances due to spin-orbit coupling
• Nonlinear spin Hall effect in GaAs (110) quantum wells
• Conserved spin Hall conductance in two dimensional electron gas in a perpendicular magnetic field
• Predicted signatures of the intrinsic spin Hall effect in closed systems
• Magnetoelectric effect in band insulator-ferromagnet heterostructures
• Steady-state spin densities and currents
• Large Spin-to-Charge Conversion in Ultrathin Gold-Silicon Multilayers
• Maximum intrinsic spin-Hall conductivity in two-dimensional systems with k-linear spin-orbit interaction
• Spin currents in a normal two-dimensional electron gas in contact with a spin-orbit interaction region
• Spin magnetotransport in two-dimensional hole systems
• Broken spin-Hall accumulation symmetry by magnetic field and coexisted Rashba and Dresselhaus interactions
• Integer effects in the entanglement and spin fluctuations of a quantum Hall system with Rashba interactions
• Generation and Measurement of Non Equilibrium Spin Currents in Two Terminal Systems
• Spin relaxation in a zinc-blende (110) symmetric quantum well with delta-doping
• Spin Hall conductance in a Y-shaped junction device in presence of tunable spin-orbit coupling
• Spin Seebeck Effect in Asymmetric Four-Terminal Systems with Rashba Spin-Orbit Coupling
• Promoted current-induced spin polarization in inversion symmetry broken topological insulator thin films
• Effects of scattering area shape on spin conductance in a four-terminal spin-Hall setup
• Electric spin and valley Hall effects
• Effect of boundary scattering on spin-hall effect
• Interplay of Rashba spin orbit coupling and disorder in the conductance properties of a four terminal junction device
• Extra Current and Integer Quantum Hall Conductance in the Spin-Orbit Coupling System