Magnetization of a two-dimensional electron gas with a second filled subband

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dc.creatorSchaapman, M. R.
dc.creatorZeitler, U.
dc.creatorChristianen, P. C. M.
dc.creatorMaan, J. C.
dc.creatorReuter, D.
dc.creatorWieck, A. D.
dc.creatorSchuh, D.
dc.creatorBichler, M.
dc.date2003-08-25
dc.date.accessioned2026-07-07T02:53:05Z
dc.date.available2026-07-07T02:53:05Z
dc.descriptionWe have measured the magnetization of a dual-subband two-dimensional electron gas, confined in a GaAs/AlGaAs heterojunction. In contrast to two-dimensional electron gases with a single subband, we observe non-1/B-periodic, triangularly shaped oscillations of the magnetization with an amplitude significantly less than $1 μ_{\mathrm{B}}^*$ per electron. All three effects are explained by a field dependent self-consistent model, demonstrating the shape of the magnetization is dominated by oscillations in the confining potential. Additionally, at 1 K, we observe small oscillations at magnetic fields where Landau-levels of the two different subbands cross.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0308496
dc.identifierhttp://arxiv.org/abs/cond-mat/0308496
dc.identifierPhysical Review B 68, 193308 (2003)
dc.identifierdoi:10.1103/PhysRevB.68.193308
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22078
dc.subjectMesoscale and Nanoscale Physics
dc.titleMagnetization of a two-dimensional electron gas with a second filled subband
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