Spin-dependent transport of carriers in semiconductors
| dc.creator | Winkler, R. | |
| dc.date | 2006-05-15 | |
| dc.date.accessioned | 2026-07-07T07:08:57Z | |
| dc.date.available | 2026-07-07T07:08:57Z | |
| dc.description | This article reviews spin-dependent transport of carriers in homogenous three-dimensional and two-dimensional semiconductors. We begin with a discussion of optical orientation of electron spins, which allows both the creation and detection of spin-polarized carriers in semiconductors. Then we review non-equilibrium spin flow including spin drift and diffusion caused by electric fields and concentration gradients. A controlled spin precession is possible both in external magnetic fields and in effective magnetic fields due to a broken inversion symmetry. Although the Coulomb interaction does not couple to the spin degree of freedom, it affects the spin-dependent transport via the spin Coulomb drag. In gyrotropic media, the optical creation of spin-oriented electrons gives rise to spin photocurrents, which reverse their direction when the radiation helicity is changed from left-handed to right-handed. The reverse process is possible, too, i.e., an electric current in a gyrotropic medium gives rise to a spin polarization in the bulk of the sample. | |
| dc.description | 24 pages, 10 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0605390 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0605390 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/110897 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Spin-dependent transport of carriers in semiconductors | |
| dc.type | text |