Auger processes in InAs self-assembled quantum dots

6 páginas, 4 figuras.-- PACS: 78.55.−m; 71.35.−y; 73.20.Dx; 78.66.Fd.-- Trabajo presentado en el 13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS), Otawa del 1 al 6 de 1999.An experimental evidence of Auger-like excitation processes in InAs/GaAs quantum dots is demonstrated. Photoluminescence spectra of resonantly excited dots exhibit a rich satellite structure below the ground-state emission band. The energy position and the intensity distribution of the satellites are analyzed and an interpretation of the satellites as due to shake-up processes of the interacting carriers in the higher quantum dot states is suggested.Peer reviewe