Spectroscopy of Valley Splitting in a Silicon/Silicon-Germanium Two-Dimensional Electron Gas

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dc.creatorGoswami, Srijit
dc.creatorFriesen, Mark
dc.creatorTruitt, J. L.
dc.creatorTahan, Charles
dc.creatorKlein, L. J.
dc.creatorChu, J. O.
dc.creatorMooney, P. M.
dc.creatorvan der Weide, D. W.
dc.creatorCoppersmith, S. N.
dc.creatorJoynt, Robert
dc.creatorEriksson, M. A.
dc.date2004-08-18
dc.date2006-12-18
dc.date.accessioned2026-07-07T07:35:34Z
dc.date.available2026-07-07T07:35:34Z
dc.descriptionThe lifting of the two-fold degeneracy of the conduction valleys in a strained silicon quantum well is critical for spin quantum computing. Here, we obtain an accurate measurement of the splitting of the valley states in the low-field region of interest, using the microwave spectroscopy technique of electron valley resonance (EVR). We compare our results with conventional methods, observing a linear magnetic field dependence of the valley splitting, and a strong low-field suppression, consistent with recent theory. The resonance linewidth shows a marked enhancement above $T\simeq 300$ mK.
dc.descriptionSuperseded by cond-mat/0611221, published in Nature Physics
dc.identifierhttps://arxiv.org/abs/cond-mat/0408389
dc.identifierhttp://arxiv.org/abs/cond-mat/0408389
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/120138
dc.subjectMesoscale and Nanoscale Physics
dc.subjectMaterials Science
dc.titleSpectroscopy of Valley Splitting in a Silicon/Silicon-Germanium Two-Dimensional Electron Gas
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