| Full text | |
| Author(s): |
Patricio, M. A. Tito
;
Teodoro, M. D.
;
Jacobsen, G. M.
;
LaPierre, R. R.
;
Pusep, Yu. A.
Total Authors: 5
|
| Document type: | Journal article |
| Source: | PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES; v. 143, p. 5-pg., 2022-06-29. |
| Abstract | |
The recombination dynamics of photoexcited holes is studied in an In0.53Ga0.47As/InP quantum well in a quantizing magnetic field. The experimental data are analyzed in a framework of the four level system formed in the valence band by Landau levels. As a result, the characteristic times including the inter-Landau level transfer time, the spin relaxation time, and the interband recombination time are obtained. The inverse population of higher energy Landau level is found due to the slow transfer between Landau levels as compared to the fast interband recombination. It is demonstrated that optical spin injection led to about 50% spin polarization in the inversely populated Landau level, while the lowest energy Landau level is unpolarized. (AU) | |
| FAPESP's process: | 15/16191-5 - The research in new materials involving high magnetic fields and low temperatures |
| Grantee: | Gennady Gusev |
| Support Opportunities: | Research Projects - Thematic Grants |