Shell Structure and Electronic Excitations of Quantum Dots in a Magnetic Field Probed by Inelastic Light Scattering

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DOIResolve DOI: http://doi.org/10.1103/PhysRevLett.77.354
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TypeArticle
Journal titlePhysical Review Letters
Volume77
Issue2
Pages354357; # of pages: 4
AbstractInelastic light scattering experiments on deep-etched GaAs/AlGaAs modulation doped quantum dots in a magnetic field are reported. The Raman measurements at large in-plane wave vector transfer reveal a multicomponent excitation spectrum of the many-electron quantum dots. Observed transitions split with the magnetic field. The experimental results are interpreted in terms of the calculated excitation spectrum in the Hartree approximation. The results reveal an electronic shell structure of quantum dots and a low energy excitation due to a Landau-like band crossing the Fermi level with increasing magnetic field.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences
Peer reviewedYes
NPARC number12333700
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Record identifier42b4b60e-a3ff-4480-b7eb-86c5b0d3c5a9
Record created2009-09-10
Record modified2016-05-09
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