Abstract
We present the results of photoluminescence experiments on the negatively charged exciton in quantum wells (QW) in high magnetic fields Three different QW widths are used here: 100, 120, and All optically allowed transitions of are observed, enabling us to experimentally verify its energy-level diagram. All samples behave consistently with this diagram. We have determined the binding energy of the singlet and triplet state of between 23 and 50 T for the 120 and while only the triplet is observed for the A detailed comparison with recent theoretical calculations shows an agreement for all samples across this entire field range.
- Received 27 October 2000
DOI:https://doi.org/10.1103/PhysRevB.63.125331
©2001 American Physical Society