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

S. K. Chang, H. Nakata, A. V. Nurmikko, R. L. Gunshor, L. A. Kolodziejski

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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.

Original languageEnglish
Pages (from-to)667-669
Number of pages3
JournalApplied Physics Letters
Issue number9
Publication statusPublished - 1987 Dec 1


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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