Spin-Hall effect in semiconductor heterostructures with cubic Rashba spin-orbit interaction

Abstract

We study the spin-Hall effect in systems with weak cubic Rashba spin-orbit interaction. To this end we derive particle and spin diffusion equations and explicit expressions for the spin-current tensor in the diffusive regime. We discuss the impact of electric fields on the Green's functions and the diffusion equations and establish a relationship between the spin-current tensor and the spin diffusion equations for the model under scrutiny. We use our results to calculate the edge spin-accumulation in a spin-Hall experiment and show that there is also a new Hall-like contribution to the electric current in such systems.

14 pages

References in corpus (5)

• Spintronics: Fundamentals and applications
• Spin current and polarization in impure 2D electron systems with spin-orbit coupling
• Theory of Spin-Charge Coupled Transport in a Two-Dimensional Electron Gas with Rashba Spin-Orbit Interactions
• Spin Transport in Two Dimensional Hopping Systems
• Spin relaxation in a Rashba semiconductor in an electric field

Cited by in corpus (1)

• On boundary conditions for spin diffusion equations with Rashba spin-orbit interaction