Exchange interaction in degenerate p-type quantum wells
1998 (English)In: Physica. B, Condensed matter, ISSN 0921-4526, Vol. 256, 503-506 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
Elsevier , 1998. Vol. 256, 503-506 p.
hole gas; exchange; Shubnikov de Haas
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:liu:diva-116060DOI: 10.1016/S0921-4526(98)00519-5ISI: 000077775900104OAI: oai:DiVA.org:liu-116060DiVA: diva2:813307
13th International Conference on High Magnetic Fields in Semiconductor Physics