Far-Infrared Excitations below the Kohn Mode: Internal Motion in a Quantum Dot

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dc.creatorKrahne, Roman
dc.creatorGudmundsson, Vidar
dc.creatorHeyn, Christian
dc.creatorHeitmann, Detlef
dc.date2001-02-01
dc.date.accessioned2026-07-07T02:40:15Z
dc.date.available2026-07-07T02:40:15Z
dc.descriptionWe have investigated the far-infrared response of quantum dots in modulation doped GaAs heterostructures. We observe novel modes at frequencies below the center-of-mass Kohn mode. Comparison with Hartree-RPA calculations show that these modes arise from the flattened potential in our field-effect confined quantum dots. They reflect pronounced relative motion of the charge density with respect to the center-of-mass.
dc.description8 pages, LaTeX with integrated 6 PostScript figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0102005
dc.identifierhttp://arxiv.org/abs/cond-mat/0102005
dc.identifierPhys. Rev. B 63, 195303 (2001)
dc.identifierdoi:10.1103/PhysRevB.63.195303
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/17314
dc.subjectMesoscale and Nanoscale Physics
dc.titleFar-Infrared Excitations below the Kohn Mode: Internal Motion in a Quantum Dot
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