Dynamic nuclear polarization and Knight shift measurements in a breakdown regime of integer quantum Hall effect

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dc.creatorKawamura, M.
dc.creatorTakahashi, H.
dc.creatorMasubuchi, S.
dc.creatorHashimoto, Y.
dc.creatorKatsumoto, S.
dc.creatorHamaya, K.
dc.creatorMachida, T.
dc.date2007-11-21
dc.date.accessioned2026-07-07T09:48:07Z
dc.date.available2026-07-07T09:48:07Z
dc.descriptionNuclear spins are polarized electrically in a breakdown regime of an odd-integer quantum Hall effect (QHE). Electron excitation to the upper Landau subband with the opposite spin polarity flips nuclear spins through the hyperfine interaction. The polarized nuclear spins reduce the spin-splitting energy and accelerate the QHE breakdown. The Knight shift of the nuclear spins is also measured by tuning electron density during the irradiation of radio-frequency magnetic fields.
dc.description3 pages, 2 figures, EP2DS-17
dc.identifierhttps://arxiv.org/abs/0711.3259
dc.identifierhttp://arxiv.org/abs/0711.3259
dc.identifierPhysica E 40, p. 1389 (2008).
dc.identifierdoi:10.1016/j.physe.2007.09.022
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/164095
dc.subjectMesoscale and Nanoscale Physics
dc.titleDynamic nuclear polarization and Knight shift measurements in a breakdown regime of integer quantum Hall effect
dc.typetext

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