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Abstract:
Spin-resolved single-electron tunneling in GaAs/AlGaAs double-barrier
resonant tunneling structures is used to investigate the spin-splitting
of fully quantized electronic states. With the use of magneto-tunneling
spectroscopy we evaluated the Lande g-factor of GaAs quantum dots of
different confinement strengths. We observe with increasing confinement
a shift of the Lande-factor from the bulk GaAs-value towards positive
values. Our results are compared to a multiband-k(.)p-calculation. (c)
2006 WILEY-VCH Vertag GmbH & Co. KGaA, Weinheim.
