Abstract
The low temperature, LO-phonon Raman scattering is studied in two types of CdTe/Cd0.92Zn0.08Te multiple quantum wells: types I and II. The resonance profile has peaks at the energy for which the incoming beam is at the lowest exciton bands, and much stronger peaks at the outgoing beam resonance. This observation is explained by the admixture of exciton states with large in-plane K-vectors with the K∼0 exciton state and by the small dynamic damping of the excitons. The electronic structure of the system suggests that the admixture is due to hole scattering by alloy fluctuations in the CdZnTe barriers.
Original language | English |
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Pages (from-to) | 348-350 |
Number of pages | 3 |
Journal | Journal of Luminescence |
Volume | 53 |
Issue number | 1-6 |
DOIs | |
State | Published - Jul 1992 |
Externally published | Yes |