| DOI | Resolve DOI: https://doi.org/10.1080/01418639408240215 |
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| Author | Search for: Viña, L.; Search for: Muñoz, L.; Search for: Mestres, N.; Search for: Koteles, E.S.; Search for: Bertolet, D.C.; Search for: Lau, K.M. |
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| Format | Text, Article |
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| Abstract | We have studied the optical properties of GaAs1 - xPx/Ga0.65 Al0.35 As quantum wells as a function of well width and phosphorus concentration in the presence of an external magnetic field. The combination of confinement and lattice-mismatch effects in this system allows tuning of the splitting between the heavy-hole and light-hole subbands. The ground- and excited-state energies of the excitons are obtained from low-temperature photoluminescence excitation spectroscopy. From an analysis of the fan diagrams, using a two-dimensional hydrogenic model, we have determined the binding energies and the reduced effective masses of the heavy-hole and light-hole excitons. An enhancement of the effective masses of the holes is observed as the heavy- and light-hole subbands approach. An unexpected behaviour of the degree of polarization of the excitons with increasing magnetic field is also observed. |
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| Publication date | 1994 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC publication | This is a non-NRC publication"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC. |
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| NPARC number | 12339247 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | cdf3066b-8d47-4b22-b8b8-05bcfa9bf757 |
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| Record created | 2009-09-11 |
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| Record modified | 2020-04-27 |
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