Tunnelling of spin-polarized holes in asymmetric double quantum well structures
We 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.
WOS:000220860700126
2004
19
4
S380
S382
Cited Reference Count: 10
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