Oertel, S. and Kunz, S. and Schuh, D. and Wegscheider, W. and Huebner, J. and Oestreich, M. (2011) Electron spin relaxation as tracer of excitons in a two-dimensional electron-hole plasma inside a (110)-GaAs quantum well. EPL, 96 (6): 67010. ISSN 0295-5075,
Full text not available from this repository. (Request a copy)Abstract
We show that a fast electron spin relaxation time in (110)-oriented GaAs/AlGaAs quantum wells is governed by the presence of excitons at low temperatures and intermediate excitation densities. The electron loses its spin orientation within an exciton due to the long-range part of the exciton anisotropic spin exchange interaction and unveils excitonic signatures within the many particle electron-hole system. The temperature-dependent time-and polarization-resolved photoluminescence measurements span five decades of carrier density, comprise the transition from localized excitons over quasi-free excitons to an electron-hole plasma, and reveal strong excitonic signatures even at relatively high densities and temperatures. Copyright (C) EPLA, 2011
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ROOM-TEMPERATURE; GAAS; DYNAMICS; PHOTOLUMINESCENCE; SEMICONDUCTORS; DEPENDENCE; EXCITATION; ABSORPTION; CRYSTALS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Rupert Huber |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 27 May 2020 04:59 |
| Last Modified: | 27 May 2020 04:59 |
| URI: | https://pred.uni-regensburg.de/id/eprint/19699 |
Actions (login required)
 |
View Item |
