Intrinsic spin Hall effect in systems with striped spin-orbit coupling

Abstract

The Rashba spin-orbit coupling arising from structure inversion asymmetry couples spin and momentum degrees of freedom providing a suitable (and very intensively investigated) environment for spintronic effects and devices. Here we show that in the presence of strong disorder, non-homogeneity in the spin-orbit coupling gives rise to a finite spin Hall conductivity in contrast with the corresponding case of a homogeneous linear spin-orbit coupling. In particular, we examine the inhomogeneity arising from a striped structure for a two-dimensional electron gas, affecting both density and Rashba spin-orbit coupling. We suggest that this situation can be realized at oxide interfaces with periodic top gating.

arXiv comment9 pages, 8 figures

References in corpus (31)

• Spintronics: Fundamentals and applications
• Universal Intrinsic Spin-Hall Effect
• Tunable Rashba spin-orbit interaction at oxide interfaces
• Spin current and polarization in impure 2D electron systems with spin-orbit coupling
• Suppression of the Persistent Spin Hall Current by Defect Scattering
• Theory of spin-orbit coupling at LaAlO3/SrTiO3 interfaces and SrTiO3 surfaces
• Spin currents and spin superfluidity
• Spin-Hall effect in a disordered 2D electron-system
• Theory of t2g electron-gas Rashba interactions
• Nonexistence of intrinsic spin currents
• Rashba induced magnetoconductance oscillations in the LaAlO3-SrTiO3 heterostructure
• Spin-orbit interaction in a two-dimensional electron gas: a SU(2) formulation
• Non-Abelian gauge fields in the gradient expansion: generalized Boltzmann and Eilenberger equations
• Spin transport of electrons through quantum wires with spatially-modulated strength of the Rashba spin-orbit interaction
• Intrinsic instability of electronic interfaces with strong Rashba coupling
• Dependence of the intrinsic spin Hall effect on spin-orbit interaction character
• Equilibrium spin currents in the Rashba medium
• Mechanical measurement of equilibrium spin currents in the Rashba medium
• Metal-insulator transition in a quantum wire driven by a modulated Rashba spin-orbit coupling
• Spin responses and effective Hamiltonian for the two dimensional electron gas at oxide interface {LaAlO}${}_3$/{SrTiO}${}_3$
• Modulated Rashba interaction in a quantum wire: Spin and charge dynamics
• Phase diagrams of voltage-gated oxide interfaces with strong Rashba coupling
• Spin Hall Effect and Spin Transfer in Disordered Rashba Model
• Robust to impurity-scattering spin Hall effect in two-dimensional electron gas
• Spin-Hall edge spin polarization in a ballistic 2D electron system
• Electric field-induced spin textures in a superlattice with Rashba and Dresselhaus spin-orbit coupling
• Mesoscopic Spin-Hall Effect in 2D electron systems with smooth boundaries
• Edge spin accumulation: spin Hall effect without bulk spin current
• Spin-Hall Effect in A Symmetric Quantum Wells by A Random Rashba Field
• Phase separation and long wave-length charge instabilities in spin-orbit coupled systems
• Bulk Spin-Hall Effect

Cited by in corpus (6)

• Highly efficient and tuneable spin-to-charge conversion through Rashba coupling at oxide interfaces
• Planar Hall Effect and Anisotropic Magnetoresistance in a polar-polar interface of LaVO${}_3$-KTaO${}_3$ with strong spin-orbit coupling
• Electronic phase separation at LaAlO3/SrTiO3 interfaces tunable by oxygen deficiency
• Pauli metallic ground-state in Hubbard clusters with Rashba spin-orbit coupling
• Density inhomogeneities and Rashba spin-orbit coupling interplay in oxide interfaces
• Transport properties of Rashba conducting strips coupled to magnetic moments with spiral order