TITLE

Resonant Raman scattering and exciton-optical phonon coupling in CdTe/(Cd,Mn)Te quantum wells

AUTHOR(S)
Chang, S.-K.; Nakata, H.; Nurmikko, A. V.; Gunshor, R. L.; Kolodziejski, L. A.
PUB. DATE
August 1987
SOURCE
Applied Physics Letters;8/31/1987, Vol. 51 Issue 9, p667
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Resonant Raman scattering at the E0 gap from longitudinal optical phonons in CdTe/(Cd,Mn)Te multiple quantum wells has been studied near the strain split n=1 exciton ground state. A large resonance enhancement is observed with distinct incoming and outgoing channels, in agreement with luminescence excitation spectra. Phonons are observed from CdTe wells and (Cd,Mn)Te barriers, indicative of small valence-band offsets for this superlattice system. At extreme resonance, striking linewidth broadening and damping effects for the alloy phonon modes are witnessed.
ACCESSION #
9824048

 

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