Spin-triplet negatively charged excitons in GaAs quantum wells
- 15 September 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 52 (11) , 7841-7844
- https://doi.org/10.1103/physrevb.52.7841
Abstract
We observe magnetic-field-induced transitions in the interband optical spectra of GaAs quantum wells with a small excess electron density. Their strengthening with excess electron density, in addition to their light polarization dependence, demonstrate that these correspond to (excited) spin-triplet states of the negatively charged exciton. The second-electron binding energy of both singlet and triplet strengthens with field.
Keywords
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