Phonon-induced electron relaxation in quantum rings

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dc.creatorPiacente, G.
dc.creatorHai, G. Q.
dc.date2007-03-05
dc.date.accessioned2026-07-07T07:50:01Z
dc.date.available2026-07-07T07:50:01Z
dc.descriptionWe study electron-acoustic phonon scattering and electron relaxation in quantum rings in the absence and in the presence of external magnetic fields. Electron-phonon interaction is accounted for both the deformation potential and piezoelectric coupling. At zero magnetic field and small ring radius, the deformation potential phonon scattering is orders of magnitude larger than the piezoelectric one. However, the piezoelectric coupling is found to become important when the ring radius and magnetic field increase. It can be the dominant scattering mechanism at large ring radii and/or large magnetic fields. In comparison with the quantum dot case, the acoustic phonon scattering is stronger in quantum rings.
dc.description9 pages, 11 figures, submitted to Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/cond-mat/0703133
dc.identifierhttp://arxiv.org/abs/cond-mat/0703133
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/125036
dc.subjectOther Condensed Matter
dc.subjectMesoscale and Nanoscale Physics
dc.titlePhonon-induced electron relaxation in quantum rings
dc.typetext

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