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Influence of a strong magnetic field on the Wannier-Stark states of an electrically biased GaAs/Al(x)Ga(1-x)As superlattice

Einfluss eines starken magnetischen Feldes auf die Wannier-Stark-Zustände eines elektrisch vorgespannten GaAs/Al(x)Ga(1-x)As Übergitters
 
: Hummel, A.B.; Bauer, T.; Roskos, H.G.; Glutsch, S.; Köhler, K.

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Physical Review. B 67 (2003), No.4, Art. 045319, 10 pp.
ISSN: 0163-1829
ISSN: 1098-0121
ISSN: 0556-2805
English
Journal Article
Fraunhofer IAF ()
III-V semiconductor; III-V Halbleiter; superlattice; Übergitter

Abstract
We present experimental and theoretical photocurrent spectra of a GaAs/AlGaAs superlattice under the influence of electric and magnetic fields parallel to the growth axis. In this field configurations, the charge carriers are subjected to zero-dimensional confinement. Depending on the fields, we observe a complicated interplay of Wannier-Stark and Landau levels. The experimental spectra are found to be in good agreement with numerical results.

: http://publica.fraunhofer.de/documents/N-19382.html