Abstract
The spin splitting of the parity-forbidden transition and ground-state transition in a coupled double quantum well is investigated by photoluminescence (PL) and PL excitation spectroscopy in magnetic fields up to 13 T. Our experiment indicated that the spin splitting of is reversed compared with that of and is larger than that of . We report that the spin splitting of increases with the decrease of GaAs thickness separating the quantum wells. The behavior is confirmed to be due to the strong mixing of the p exciton of and the s exciton of the light hole.
- Received 6 July 1998
DOI:https://doi.org/10.1103/PhysRevB.58.R10183
©1998 American Physical Society