Exchange interaction in degenerate p-type quantum wells

A detailed comparison between a magneto-transport experiment on a p-type GaAs/AlGaAs quantum well and model calculations is presented. It is shown that for all magnetic fields the Shubnikov-de Haas (SdH) trace is strongly influenced by the exchange interaction, in contrast with n-type structures whe...

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Bibliographic Details
Main Authors: Kemerink, Martijn (Author) , Koenraad, Paulus M. (Author) , Wolter, Joachim H. (Author)
Format: Article (Journal)
Language:English
Published: 10 January 2000
In: Physica. B, Condensed matter
Year: 1998, Volume: 256/258, Pages: 503-506
ISSN:1873-2135
DOI:10.1016/S0921-4526(98)00519-5
Online Access:Verlag, Volltext: https://doi.org/10.1016/S0921-4526(98)00519-5
Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0921452698005195
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Author Notes:M. Kemerink, P.M. Koenraad, J.H. Wolter
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Summary:A detailed comparison between a magneto-transport experiment on a p-type GaAs/AlGaAs quantum well and model calculations is presented. It is shown that for all magnetic fields the Shubnikov-de Haas (SdH) trace is strongly influenced by the exchange interaction, in contrast with n-type structures where this interaction is only important in high magnetic fields. As a consequence, the effective hole masses that are extracted from the temperature dependence of the SdH oscillations are not a good measure of the single-particle hole mass, and can be regarded as meaningless.
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Physical Description:Online Resource
ISSN:1873-2135
DOI:10.1016/S0921-4526(98)00519-5