Subpicosecond spin relaxation dynamics of excitons and free carriers in GaAs quantum wells
- 9 December 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 67 (24), 3432-3435
- https://doi.org/10.1103/physrevlett.67.3432
Abstract
We have obtained a coherent understanding of spin relaxation processes of electrons, holes, and excitons in quantum walls by investigating subpicosecond dynamics of luminescence polarization. We show that the spin behavior for electrons and holes in quasi-two-dimensional systems is distinct from that in bulk semiconductors and that many-body effects and formation process play an important role in exciton spin relaxation.Keywords
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