Resonant Raman scattering mediated by excitons in CdTe/CdZnTe multiple quantum wells

Y. Garini, H. Tuffigo, I. Brener, E. Cohen, N. Magnea, H. Mariette

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Pages (from-to)348-350
Number of pages3
JournalJournal of Luminescence
Volume53
Issue number1-6
DOIs
StatePublished - Jul 1992
Externally publishedYes

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