Lookup NU author(s): Dr Jonathan Mar
This is the final published version of an article that has been published in its final definitive form by AIP Publishing LLC, 2010.
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It is widely accepted that quantum wells with potential profiles lacking inversion symmetry will exhibit spin‐split conduction band states due to the Rashba spin‐orbit interaction. Here we measure conduction band splitting for undoped asymmetric and symmetric GaAs/AlGaAs quantum wells in the absence of electric fields. Surprisingly the conduction band spin‐splitting measured in asymmetric quantum wells is no greater than that measured in symmetric quantum wells. This is a consequence of Ehrenfests theorem and the fact that the conduction and valence band edge profiles are related by a constant factor.
Author(s): Eldridge PS, Leyland WJH, Mar JD, Lagoudakis PG, Winkler R, Karimov OZ, Henini M, Taylor D, Phillips RT, Harley RT
Publication type: Article
Publication status: Published
Journal: AIP Conference Proceedings
Online publication date: 15/01/2010
Date deposited: 15/06/2020
ISSN (print): 0094-243X
ISSN (electronic): 1551-7616
Publisher: AIP Publishing LLC
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