Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2005-07-10
Phys. Rev. B 73, 115339 (2006)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
The Coulomb corrections to the spin-Hall conductivity and spin accumulations to first order in strength of spin-orbit coupling
Scientific paper
10.1103/PhysRevB.73.115339
We develop the microscopic theory of the extrinsic spin Hall conductivity of a two-dimensional electron gas, including skew-scattering, side-jump, and Coulomb interaction effects. We find that while the spin-Hall conductivity connected with the side-jump is independent of the strength of electron-electron interactions, the skew-scattering term is reduced by the spin-Coulomb drag, so the total spin current and the total spin-Hall conductivity are reduced for typical experimental mobilities. Further, we predict that in paramagnetic systems the spin-Coulomb drag reduces the spin accumulations in two different ways: (i) directly through the reduction of the skew-scattering contribution (ii) indirectly through the reduction of the spin diffusion length. Explicit expressions for the various contributions to the spin Hall conductivity are obtained using an exactly solvable model of the skew-scattering.
Hankiewicz Ewelina M.
Vignale Giovanni
No associations
LandOfFree
Coulomb corrections to the extrinsic spin-Hall effect of a two-dimensional electron gas does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Coulomb corrections to the extrinsic spin-Hall effect of a two-dimensional electron gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coulomb corrections to the extrinsic spin-Hall effect of a two-dimensional electron gas will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-582929