Edge spin accumulation: spin Hall effect without bulk spin current

Abstract

Spin accumulation in a 2D electron gas with Rashba spin-orbit interaction subject to an electric field can take place without bulk spin currents (edge spin Hall effect). This is demonstrated for the collisional regime using the non-equilibrium distribution function determined from the standard Boltzmann equation. Spin accumulation originates from interference of incident and reflected electron waves at the sample boundary.

4 pages, 3 figures

References in corpus (6)

• Can Non-Equilibrium Spin Hall Accumulation be Induced in Ballistic Nanostructures?
• Small-angle impurity scattering and the spin Hall conductivity in 2D systems
• Spin Accumulation and Equilibrium Currents at the Edge of 2DEGs with Spin-Orbit Coupling
• Mechanical measurement of equilibrium spin currents in the Rashba medium
• Spin-Hall edge spin polarization in a ballistic 2D electron system
• Mesoscopic Spin-Hall Effect in 2D electron systems with smooth boundaries

Cited by in corpus (11)

• Spin currents and spin superfluidity
• Strong influence of spin-orbit coupling on magnetotransport in two-dimensional hole systems
• Current-induced spin polarization at the surface of metallic films: a theorem and an ab initio calculation
• Spin accumulation without spin current
• Intrinsic spin Hall effect in systems with striped spin-orbit coupling
• Edge spin accumulation in 2D electron and hole systems in a quasi-ballistic regime
• Unitarity of scattering and edge spin accumulation
• Spin Filtering via Resonant Reflection of Relativistic Surface States
• Spin accumulation in the spin Nernst effect
• The spin Hall effect
• Interface states in two-dimensional electron systems with spin-orbital interaction