Can Non-Equilibrium Spin Hall Accumulation be Induced in Ballistic Nanostructures?

Abstract

We demonstrate that flow of longitudinal unpolarized current through a ballistic two-dimensional electron gas with Rashba spin-orbit coupling will induce nonequilibrium spin accumulation which has opposite sign for the two lateral edges and it is, therefore, the principal observable signature of the spin Hall effect in two-probe semiconductor nanostructures. The magnitude of its out-of-plane component is gradually diminished by static disorder, while it can be enhanced by an in-plane transverse magnetic field. Moreover, our prediction of the longitudinal component of the spin Hall accumulation, which is insensitive to the reversal of the bias voltage, offers a smoking gun to differentiate experimentally between the extrinsic, intrinsic, and mesoscopic spin Hall mechanisms.

5 pages, 3 color EPS figures; published version

References in corpus (16)

• Spintronics: Fundamentals and applications
• Spin Hall effect
• Universal Intrinsic Spin-Hall Effect
• Dissipationless Quantum Spin Current at Room Temperature
• Experimental observation of the spin-Hall effect in a two dimensional spin-orbit coupled semiconductor system
• Spin current and polarization in impure 2D electron systems with spin-orbit coupling
• SU(2) Non-Abelian Holonomy and Dissipationless Spin Current in Semiconductors
• Diffuse transport and spin accumulation in a Rashba two-dimensional electron gas
• Spin-Hall Effect in Two-Dimensional Electron Systems with Rashba Spin-Orbit Coupling and Disorder
• Manifestation of the spin-Hall effect through transport measurements in the mesoscopic regime
• Decoherence of transported spin in multichannel spin-orbit coupled spintronic devices: Scattering approach to spin density matrix from the ballistic to the localized regime
• Intrinsic Spin and Orbital-Angular-Momentum Hall Effect
• Spin relaxation dynamics of quasiclassical electrons in ballistic quantum dots with strong spin-orbit coupling
• The role of orbital dynamics in spin relaxation and weak antilocalization in quantum dots
• Influences of spin accumulation on the intrinsic spin Hall effect in two dimensional electron gases with Rashba spin-orbit coupling
• Spin injection, accumulation and spin precession in a mesoscopic non-magn etic metal island

Cited by in corpus (106)

• Semiconductor Spintronics
• Semiclassical theories of the anomalous Hall effect
• Theory of Spin Hall conductivity in n-doped GaAs
• Spin currents and spin superfluidity
• Modeling techniques for quantum cascade lasers
• The definition of the spin current: The angular spin current and its physical consequences
• The angular spin current and its physical consequences
• Imaging mesoscopic spin Hall flow: Spatial distribution of local spin currents and spin densities in and out of multiterminal spin-orbit coupled semiconductor nanostructures
• Bias-controllable intrinsic spin polarization in a quantum dot
• Mesoscopic Spin Hall Effect in Multiprobe Ballistic Spin-Orbit Coupled Semiconductor Bridges
• Spin Hall Effect in Atoms
• Vertex Corrections on the Anomalous Hall Effect in Spin-polarized Two-dimensional Electron Gases with Rashba Spin-orbit Interaction
• Intrinsic Spin Hall Edges
• Quasiclassical approach to the spin-Hall effect in the two-dimensional electron gas
• Spin Hall Effect
• Edge spin accumulation in semiconductor two-dimensional hole gases
• Small-angle impurity scattering and the spin Hall conductivity in 2D systems
• Out-of-plane spin polarization from in-plane electric and magnetic fields
• Topological Spin Hall Effect due to Magnetic Skyrmions
• Spin Accumulation and Equilibrium Currents at the Edge of 2DEGs with Spin-Orbit Coupling
• Spin Accumulation in the Extrinsic Spin Hall Effect
• Spin-Hall effect on edge magnetization and electric conductance of a 2D semiconductor strip
• Transverse Spin-Orbit Force in the Spin Hall Effect in Ballistic Semiconductor Wires
• Influence of dephasing process on the quantum Hall effect and the spin Hall effect
• Dependence of the intrinsic spin Hall effect on spin-orbit interaction character
• Spontaneous Edge Accumulation of Spin Currents in Finite-Size Two-Dimensional Diffusive Spin-Orbit Coupled SFS Heterostructures
• Observation of intrinsic inverse spin Hall effect
• Spin Hall effect in clean two dimensional electron gases with Rashba spin-orbit coupling
• Twist- and gate-tunable proximity spin-orbit coupling, spin relaxation anisotropy, and charge-to-spin conversion in heterostructures of graphene and transition-metal dichalcogenides
• Long-Range Spin-Triplet Correlations and Edge Spin Currents in Diffusive Spin-Orbit Coupled SNS Hybrids with a Single Spin-Active Interface
• Josephson Spin Current in Triplet Superconductor Junctions
• Coulomb corrections to the extrinsic spin-Hall effect of a two-dimensional electron gas
• Spin Hall Effect and Spin Transfer in Disordered Rashba Model
• Spin Hall effect in the kagome lattice with Rashba spin-orbit interaction
• Spin Hall effect and zitterbewegung in an electron waveguide
• Polarized Electric Current in Semiclassical Transport with Spin-Orbit Interaction
• Spin-Hall edge spin polarization in a ballistic 2D electron system
• Kinetic magnetoelectric effect in a 2D semiconductor strip due to boundary-confinement induced spin-orbit coupling
• Spin accumulation in ballistic Rashba bar
• Spin Hall effect in two-dimensional $p$-type semiconductors in a magnetic field
• Spin-Current-Induced Charge Accumulation and Electric Current in Semiconductor Nanostructures with Rashba Spin-Orbit Coupling
• Spin Hall utilizing U(1) and SU(2) gauge fields
• Nature of Spin Hall Effect in a finite Ballistic Two-Dimensional System with Rashba and Dresselhaus spin-orbit interaction
• How to construct the proper gauge-invariant density matrix in steady-state nonequilibrium: Applications to spin-transfer and spin-orbit torques
• Orbital magnetoelectric effect in nanoribbons of transition metal dichalcogenides
• Spin polarization in the Hubbard model with Rashba spin-orbit coupling on a ladder
• Opposite spin accumulations on the transverse edges by the confining potential
• Electrical spin orientation, spin-galvanic and spin-Hall effects in disordered two-dimensional systems
• Induced quantum dots and wires: electron storage and delivery
• Tuning skyrmion Hall effect via engineering of spin-orbit interaction
• Spin accumulation without spin current
• Spin Hall effect in a Doped Mott Insulator
• Current-induced spin polarization in spin-orbit-coupled two-dimensional electron systems
• Giant mesoscopic spin Hall effect on surface of topological insulator
• Mesoscopic Spin-Hall Effect in 2D electron systems with smooth boundaries
• Upstanding Rashba spin in honeycomb lattices: Electrically reversible surface spin polarization
• Spin Hall effect due to intersubband-induced spin-orbit interaction in symmetric quantum wells
• Spin and charge transport in U-shaped one-dimensional channels with spin-orbit couplings
• Numerical Study of the Spin Hall Conductance in the Luttinger Model
• Magnetic breakdown of cyclotron orbits in systems with Rashba and Dresselhaus spin-orbit coupling
• Edge spin accumulation: spin Hall effect without bulk spin current
• Topological nature of the proper spin current and the spin-Hall torque
• What can we learn about the dynamics of transported spins by measuring shot noise in spin-orbit-coupled nanostructures?
• Fractional Spin Hall Effect in Atomic Bose Gases
• Finite-size Effects in a Two-Dimensional Electron Gas with Rashba Spin-Orbit Interaction
• Intrinsic spin-Hall accumulation in honeycomb lattices: Band structure effects
• Hall Voltage with the Spin Hall Effect
• Spin-Hall conductivity of a spin-polarized two-dimensional electron gas with Rashba spin-orbit interaction and magnetic impurities
• Edge-induced spin polarization in two-dimensional electron gas
• Spin Injection in Quantum Wells with Spatially Dependent Rashba Interaction
• Spin Hall Effect and Spin Orbit coupling in Ballistic Nanojunctions
• Spin-Hall Effect in A Symmetric Quantum Wells by A Random Rashba Field
• Spin-Hall interface resistance in terms of Landauer type spin dipoles
• Nonequilibrium spin transport on Au(111) surfaces
• Anomalous spin Hall effects in Dresselhaus (110) quantum wells
• Classical and quantum machine learning applications in spintronics
• Giant edge spin accumulation in a symmetric quantum well with two subbands
• Spin densities in parabolic quantum wires with Rashba spin-orbit interaction
• Non-equilibrium spin polarization effects in spin-orbit coupling system and contacting metallic leads
• Helical currents in metallic Rashba strips
• Spin-Hall effect in topological materials: Evaluating the proper spin current in systems with arbitrary degeneracies
• Some symmetry properties of spin currents and spin polarizations in multi-terminal mesoscopic spin-orbit coupled systems
• Spin cloud induced around an elastic scatterer by the intrinsic spin-Hall effect
• Landauer-Büttiker Study of the Anomalous Hall Effect
• Current in a Spin-orbit-coupling System
• Spin and Charge Shot Noise in Mesoscopic Spin Hall Systems
• Edge spin accumulation in 2D electron and hole systems in a quasi-ballistic regime
• Unitarity of scattering and edge spin accumulation
• Spin accumulation from non-equilibrium first principles methods
• Charge-spin interconversion in graphene-based systems from density functional theory
• Charge and spin transport in nanoscopic structures with spin-orbit coupling
• Current induced local spin polarization due to the spin-orbit coupling in a two dimensional narrow strip
• Generation of current vortex by spin current in Rashba systems
• Local spin density in two-dimensional electron gas with hexagonal boundary
• Influence of inelastic relaxation time on intrinsic spin Hall effects in a disordered two-dimensional electron gas
• Spin accumulation in the spin Nernst effect
• Predicted signatures of the intrinsic spin Hall effect in closed systems
• Quantum Transport in Ladder-Type Networks: Role of nonlinearity, topology and spin
• Interference of Fano-Rashba conductance dips
• Broken spin-Hall accumulation symmetry by magnetic field and coexisted Rashba and Dresselhaus interactions
• Wannier interpolation of spin accumulation coefficient
• Reconciling Kubo and Keldysh Approaches to Fermi-Sea-Dependent Nonequilibrium Observables: Application to Spin Hall Current and Spin-Orbit Torque in Spintronics
• Electronic Impurity Scattering Induced Spin Accumulation in Metallic Thin Films
• Anisotropic intrinsic spin Hall effect in quantum wires
• Effects of scattering area shape on spin conductance in a four-terminal spin-Hall setup
• Subband anticrossing and the spin Hall effect in quantum wires