Diffusion equation and spin drag in spin-polarized transport
| dc.creator | Flensberg, Karsten | |
| dc.creator | Jensen, Thomas Stibius | |
| dc.creator | Mortensen, Niels Asger | |
| dc.date | 2001-07-06 | |
| dc.date.accessioned | 2026-07-07T02:42:04Z | |
| dc.date.available | 2026-07-07T02:42:04Z | |
| dc.description | We study the role of electron-electron interactions for spin polarized transport using the Boltzmann equation and derive a set of coupled transport equations. For spin polarized transport the electron-electron interactions are important, because they tend to equilibrate the momentum of the two spin species. This ``spin drag'' effect enhances the resistivity of the system. The enhancement is stronger the lower the dimension and should be measurable in for example a two dimensional electron gas with ferromagnetic contacts. We also include spin flip scattering which has two effects: it equilibrates the spin density imbalance and, provided it has a non s-wave component, also the current imbalance. | |
| dc.description | 9 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0107149 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0107149 | |
| dc.identifier | Phys. Rev. B 64, 245308 (2001). | |
| dc.identifier | doi:10.1103/PhysRevB.64.245308 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/17990 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Diffusion equation and spin drag in spin-polarized transport | |
| dc.type | text |