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.


Published in:
Semiconductor Science and Technology, 19, 4, S380-S382
Year:
2004
ISSN:
0268-1242
Keywords:
Note:
Cited Reference Count: 10
Cited References:
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Sp. Iss. SI
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 Record created 2007-08-31, last modified 2018-03-17


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