Spin susceptibilities, spin densities and their connection to spin-currents

Abstract

We calculate the frequency dependent spin susceptibilities for a two-dimensional electron gas with both Rashba and Dresselhaus spin-orbit interaction. The resonances of the susceptibilities depends on the relative values of the Rashba and Dresselhaus spin-orbit constants, which could be manipulated by gate voltages. We derive exact continuity equations, with source terms, for the spin density and use those to connect the spin current to the spin density. In the free electron model the susceptibilities play a central role in the spin dynamics since both the spin density and the spin current are proportional to them.

6 pages, revtex4 style

References in corpus (14)

• Quantum Computation with Quantum Dots
• Spin Hall effect
• Universal Intrinsic Spin-Hall Effect
• Dissipationless Quantum Spin Current at Room Temperature
• Non-ballistic spin field-effect transistor
• Gate-Controlled Spin-Orbit Quantum Interference Effects in Lateral Transport
• Suppression of the Persistent Spin Hall Current by Defect Scattering
• Spin-transport in multi-terminal normal metal - ferromagnet systems with non-collinear magnetizations
• The Rashba Hamiltonian and electron transport
• Absence of vertex correction for the spin Hall effect in p-type semiconductors
• Dissipation effects in spin-Hall transport of electrons and holes
• Spin Orientation and Spin Precession in Inversion-Asymmetric Quasi Two-Dimensional Electron Systems
• Datta-Das transistor with enhanced spin control
• Spin Current in Spin-Orbit Coupling Systems

Cited by in corpus (51)

• Spin dynamics in semiconductors
• Theory of Spin Hall conductivity in n-doped GaAs
• Persistent Spin Textures in Semiconductor Nanostructures
• Spin-Hall conductivity due to Rashba spin-orbit interaction in disordered systems
• Imaging mesoscopic spin Hall flow: Spatial distribution of local spin currents and spin densities in and out of multiterminal spin-orbit coupled semiconductor nanostructures
• Intrinsic Spin and Orbital-Angular-Momentum Hall Effect
• Surface bound states and spin currents in non-centrosymmetric superconductors
• Spin Hall Effect
• Electric Dipole Induced Spin Resonance in Disordered Semiconductors
• Charge Hall effect driven by spin-dependent chemical potential gradients and Onsager relations in mesoscopic systems
• Spin Dynamics and Spin Transport
• Chiral spin resonance and spin-Hall conductivity in the presence of the electron-electron interactions
• Spontaneous Edge Accumulation of Spin Currents in Finite-Size Two-Dimensional Diffusive Spin-Orbit Coupled SFS Heterostructures
• Long-Range Spin-Triplet Correlations and Edge Spin Currents in Diffusive Spin-Orbit Coupled SNS Hybrids with a Single Spin-Active Interface
• Anisotropic spin transport in GaAs quantum wells in the presence of competing Dresselhaus and Rashba spin-orbit-coupling strengths
• Absence of spontaneous magnetic order of lattice spins coupled to itinerant interacting electrons in one and two dimensions
• Fermi liquid parameters in 2D with spin-orbit interaction
• Theory of electric-field-induced spin accumulation and spin current in the two-dimensional Rashba model
• Measurement, control, and decay of quantum-dot spins
• Streda-like formula in spin Hall effect
• Spin relaxation under identical Dresselhaus and Rashba coupling strengths in GaAs quantum wells
• Generation of spin currents via Raman scattering
• Dynamic spin-Hall effect and driven spin helix for linear spin-orbit interactions
• Electric field-induced spin textures in a superlattice with Rashba and Dresselhaus spin-orbit coupling
• Spin Hall and spin Nernst effects in a two-dimensional electron gas with Rashba spin-orbit interaction: temperature dependence
• Spin and charge optical conductivities in spin-orbit coupled systems
• Longitudinal and spin-Hall conductance of a two-dimensional Rashba system with arbitrary disorder
• Orbital ac spin-Hall effect in the hopping regime
• Frequency dependence of induced spin polarization and spin current in quantum wells
• Determining the spin Hall conductance via charge transport
• Spin-relaxation time in materials with broken inversion symmetry and large spin-orbit coupling
• Resonant spin polarization and spin current in a two-dimensional electron gas
• Spin Hall effect due to intersubband-induced spin-orbit interaction in symmetric quantum wells
• Interplay of the Rashba and Dresselhaus spin-orbit coupling in the optical spin susceptibility of 2D electron systems
• On the Nature of Spin Currents
• Hole spin relaxation in $p$-type (111) GaAs quantum wells
• Geometric Origin of Intrinsic Spin Hall Effect in an Inhomogeneous Electric Field
• Charge and spin density response functions of the clean two-dimensional electron gas with Rashba spin-orbit coupling at finite momenta and frequencies
• Dynamical spin Hall conductivity in a magnetic disordered system
• Spin-density induced by electromagnetic wave in two-dimensional electron gas
• Interplay between s-d exchange interaction and Rashba effect: spin-polarized transport
• Spin torque contribution to the a.c. spin Hall conductivity
• Interplay of spin-orbit coupling and Zeeman splitting in the absorption lineshape of 2D fermions
• Out-of-plane equilibrium spin current in a quasi-two-dimensional electron gas under in-plane magnetic field
• Theory of Spin Hall Effects in Semiconductors
• Electron scattering from a mesoscopic disk in Rashba system
• Hybrid surface waves in two-dimensional Rashba-Dresselhaus materials
• Rashba coupling induced spin susceptibility and magnetic phase transition of conduction electrons in monolayer graphene
• Understanding spin Hall effect in two-dimensional fermionic systems with generic spin-orbit interaction
• Effects of scattering area shape on spin conductance in a four-terminal spin-Hall setup
• Resonant Edelstein and inverse-Edelstein effects, charge-to-spin conversion, and spin pumping from chiral-spin modes