Time-resolved optical spectroscopy in Cd1-xMnxTe/ZnTe multiple quantum wells

R. Pittini, M. Takahashi, J. X. Shen, Y. Oka

    Research output: Contribution to journalConference articlepeer-review

    2 Citations (Scopus)

    Abstract

    Time-resolved photoluminescence (PL) and optical pump-probe experiments were carried out in Cd1-xMnxTe/ZnTe multiple quantum wells to study the dynamics of the excitonic magnetic polaron in this material. In the pump-probe data, three signals were detected. The main signal is negative and monitors the energy relaxation of the excitons created by the pump pulse. The other two pump-probe signals are positive and their intensity grows while the excitons created by the pump pulse recombine. The low-energy positive pump-probe signal is found to track the average Mn spin polarization in the sample. Instead, the high-energy positive peak indicates the enhancement of the density of states due to correlation effects.

    Original languageEnglish
    Pages (from-to)393-395
    Number of pages3
    JournalJournal of Luminescence
    Volume87
    DOIs
    Publication statusPublished - 2000 May
    EventInternational Conference on Luminescence and Optical Spectroscopy of Condensed Matter (ICL'99) - Osaka, Jpn
    Duration: 1999 Aug 231999 Aug 27

    ASJC Scopus subject areas

    • Biophysics
    • Biochemistry
    • Chemistry(all)
    • Atomic and Molecular Physics, and Optics
    • Condensed Matter Physics

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