Effect of symmetry reduction on the spin dynamics of (001)-oriented GaAs quantum wells

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dc.identifier.uri http://dx.doi.org/10.15488/2075
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/2100
dc.contributor.author English, D.J.
dc.contributor.author Hübner, Jens
dc.contributor.author Eldridge, P.S.
dc.contributor.author Taylor, D.
dc.contributor.author Henini, M.
dc.contributor.author Harley, R.T.
dc.contributor.author Oestreich, Michael
dc.date.accessioned 2017-10-20T13:44:29Z
dc.date.available 2017-10-20T13:44:29Z
dc.date.issued 2013
dc.identifier.citation English, D.J.; Hübner, J.; Eldridge, P.S.; Taylor, D.; Henini, M. et al.: Effect of symmetry reduction on the spin dynamics of (001)-oriented GaAs quantum wells. In: Physical Review B - Condensed Matter and Materials Physics 87 (2013), Nr. 7, No. 75304. DOI: https://doi.org/10.1103/PhysRevB.87.075304
dc.description.abstract Spin quantum beat spectroscopy is employed to investigate the in-plane anisotropy of the spin dynamics in (001) GaAs/AlGaAs quantum wells induced by an external electric field. This technique allows the anisotropy of the spin relaxation rate Γs and the electron Landé g factor g* to be measured simultaneously. The measurements are compared to similar data from (001) GaAs/AlGaAs quantum wells with applied shear strain and asymmetric barrier growth. All of these operations act to reduce the symmetry compared to that of a symmetric (001) quantum well in an identical manner (D2d → C2v). However, by looking at the anisotropy of both Γs and g* simultaneously we show that the microscopic actions of these symmetry breaking operations are very different. The experiments attest that although symmetry arguments are a very useful tool to identify the allowed spin dependent properties of a material system, only a microscopic approach reveals if allowed anisotropies will manifest. © 2013 American Physical Society. eng
dc.language.iso eng
dc.publisher College Park, MD : American Physical Society
dc.relation.ispartofseries Physical Review B 87 (2013), Nr. 7
dc.rights Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
dc.subject.ddc 530 | Physik ger
dc.title Effect of symmetry reduction on the spin dynamics of (001)-oriented GaAs quantum wells
dc.type article
dc.type Text
dc.relation.issn 10980121
dc.relation.doi https://doi.org/10.1103/PhysRevB.87.075304
dc.bibliographicCitation.issue 7
dc.bibliographicCitation.volume 87
dc.bibliographicCitation.firstPage 75304
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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