Anomalous Spin Polarization of GaAs Two-Dimensional Hole Systems

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dc.creatorWinkler, R.
dc.creatorTutuc, E.
dc.creatorPapadakis, S. J.
dc.creatorMelinte, S.
dc.creatorShayegan, M.
dc.creatorWasserman, D.
dc.creatorLyon, S. A.
dc.date2005-02-23
dc.date2005-06-20
dc.date.accessioned2026-07-07T06:22:36Z
dc.date.available2026-07-07T06:22:36Z
dc.descriptionWe report measurements and calculations of the spin-subband depopulation, induced by a parallel magnetic field, of dilute GaAs two-dimensional (2D) hole systems. The results reveal that the shape of the confining potential dramatically affects the values of in-plane magnetic field at which the upper spin subband is depopulated. Most surprisingly, unlike 2D electron systems, the carrier-carrier interaction in 2D hole systems does not significantly enhance the spin susceptibility. We interpret our findings using a multipole expansion of the spin density matrix, and suggest that the suppression of the enhancement is related to the holes' band structure and effective spin j=3/2.
dc.description6 pages, 4 figures, substantially extended discussion of results
dc.identifierhttps://arxiv.org/abs/cond-mat/0502559
dc.identifierhttp://arxiv.org/abs/cond-mat/0502559
dc.identifierPhys. Rev. B 72, 195321 (2005)
dc.identifierdoi:10.1103/PhysRevB.72.195321
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/95959
dc.subjectMesoscale and Nanoscale Physics
dc.titleAnomalous Spin Polarization of GaAs Two-Dimensional Hole Systems
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