Abstract
The effects of a uniform electric field on the binding energies of excitons and the subband energies in a GaAs/AlxGa1-xAs quantum well are studied by a perturbative variational approach. Our calculation is based on an effective-width infinite-well model. The effective-mass mismatch is also taken into account. Our results show that the electric field causes a large shift of the subband energy and exciton peak position. The calculated results are compared with the data observed from an optical-absorption experiment. Satisfactory agreement is obtained.
Original language | English |
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Pages (from-to) | 8054-8060 |
Number of pages | 7 |
Journal | Physical Review B |
Volume | 44 |
Issue number | 15 |
DOIs | |
Publication status | Published - 1991 Jan 1 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics