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.
Title
Tunnelling of spin-polarized holes in asymmetric double quantum well structures
Published in
Semiconductor Science and Technology
Volume
19
Issue
4
Pages
S380-S382
Date
2004
ISSN
0268-1242
Note
Cited Reference Count: 10
Cited References:
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Sp. Iss. SI
Record creation date
2007-08-31