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 (1)

• Absence of vertex correction for the spin Hall effect in p-type semiconductors

Cited by in corpus (5)

• Theory of Spin Hall conductivity in n-doped GaAs
• Imaging mesoscopic spin Hall flow: Spatial distribution of local spin currents and spin densities in and out of multiterminal spin-orbit coupled semiconductor nanostructures
• Chiral spin resonance and spin-Hall conductivity in the presence of the electron-electron interactions
• Streda-like formula in spin Hall effect
• Spin relaxation under identical Dresselhaus and Rashba coupling strengths in GaAs quantum wells