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Spin effects in quantum dots
Author(s) -
Könemann J.,
Winkler R.,
Maude D. K.,
Haug R. J.
Publication year - 2006
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200642292
Subject(s) - quantum tunnelling , quantum dot , condensed matter physics , spin (aerodynamics) , scanning tunneling spectroscopy , spectroscopy , physics , electron , chemistry , materials science , quantum mechanics , thermodynamics
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 Landé g ‐factor of GaAs quantum dots of different confinement strengths. We observe with increasing confinement a shift of the Landé‐factor from the bulk GaAs‐value towards positive values. Our results are compared to a multiband‐ k · p ‐calculation. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)