Kloptowski, L.Nawrocki, M.Ganiere, J. D.Deveaud, B.Janik, E.2007-08-312007-08-312007-08-31200410.1088/0268-1242/19/4/125https://infoscience.epfl.ch/handle/20.500.14299/11532WOS:0002208607001264991We report on time-resolved photoluminescence studies of tunnelling in a system of asymmetric double quantum wells (QWs). We employ a structure with a semimagnetic QW to align carrier spins and with excess concentration of electrons to provide a sensitive tool for studying the heavy hole dynamics. We prove the existence of hole tunnelling and demonstrate an efficient spin transfer in the process. A semi-empirical model describes qualitatively the experimental findings.RELAXATIONEXCITONSCDTEtext::journal::journal article::research article