Spin-subband populations and spin polarization of quasi two-dimensional carriers under in-plane magnetic field
| dc.creator | Simserides, Constantinos | |
| dc.date | 2006-11-30 | |
| dc.date | 2007-04-04 | |
| dc.date.accessioned | 2026-07-07T09:18:19Z | |
| dc.date.available | 2026-07-07T09:18:19Z | |
| dc.description | Under an in-plane magnetic field, the density of states of quasi two-dimensional carriers deviates from the occasionally stereotypic step-like form both quantitatively and qualitatively. For the first time, we study how this affects the spin-subband populations and the spin-polarization as functions of the temperature, T, and the in-plane magnetic field, B, for narrow to wide dilute-magnetic-semiconductor quantum wells. We examine a wide range of material and structural parameters, focusing on the quantum well width, the magnitude of the spin-spin exchange interaction, and the sheet carrier concentration. Generally, increasing T, the carrier spin-splitting, U, decreases, augmenting the influence of the minority-spin carriers. Increasing B, U increases and accordingly carriers populate majority-spin subbands while they abandon minority-spin subbands. Furthermore, in line with the density of states modification, all energetically higher subbands become gradually depopulated. We also indicate the ranges where the system is completely spin-polarized. | |
| dc.description | 7 pages, 6 figures, Physical Review B (in press) | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0611784 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0611784 | |
| dc.identifier | PHYSICAL REVIEW B 75, 195344 (2007) | |
| dc.identifier | doi:10.1103/PhysRevB.75.195344 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/153982 | |
| dc.subject | Materials Science | |
| dc.title | Spin-subband populations and spin polarization of quasi two-dimensional carriers under in-plane magnetic field | |
| dc.type | text |