@Article{MaialleAndr:2000:InExIn,
               author = "Maialle, M. Z. and Andrada e Siva, Erasmo Assump{\c{c}}{\~a}o 
                         de",
          affiliation = "{Universidade S{\~a}o Franscisco (USF)} and Instituto Nacional de 
                         Pesquisas Espaciais, Laboratorio Associado de Sensores e Materiais 
                         (INPE.LAS)",
                title = "Inter-exciton exchange interaction and nonlinear luminescence 
                         polarization dynamics in III-V semiconductor quantum wells",
              journal = "Physica Status Solidi A: Applied Research",
                 year = "2000",
               volume = "178",
               number = "1",
                pages = "447--452",
                month = "Mar.",
             keywords = "MATERIALS PHYSICS, Inter-exciton exchange interaction, Nonlinear 
                         luminescence, F{\'{\I}}SICA DE MATERIAIS, Intera{\c{c}}{\~a}o 
                         de troca, Luminesc{\^e}ncia n{\~a}o-linear.",
             abstract = "The effects of the inter-exciton exchange interaction in the time 
                         evolution of the exciton luminescence intensity and polarization 
                         in III-V semiconductor quantum wells are investigated 
                         theoretically The luminescence dynamics in the resonant and high 
                         density excitation regime is simulated with a set of nonlinear 
                         rate equations for the occupation numbers of a finite set of 
                         exciton spin states. and studied as function of the polarization 
                         and intensity of the exciting pulse. The spin flip transitions are 
                         driven by both intra- and inter-exciton exchange interaction. Two 
                         contributions to the latter are included in the simulation, namely 
                         the spin mixing in the symmetrized biexciton state and the spin 
                         dependent free exciton-exciton scattering. It is found that the 
                         fast decay observed experimentally at sufficient high excitation 
                         intensities, in both luminescence intensity and polarization, is 
                         reproduced with reasonable values for the relaxation times only 
                         when both contributions to the inter-exciton exchange interaction 
                         are turned on.",
           copyholder = "SID/SCD",
                 issn = "0031-8965",
             language = "en",
           targetfile = "inter-exciton.pdf",
        urlaccessdate = "02 maio 2024"
}