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Quasiatomic Fine Structure and Selection Rules in Quantum Dots

Schüller, Christian ; Keller, K. ; Biese, G. ; Ulrichs, E. ; Rolf, L. ; Steinebach, C. ; Heitmann, Detlef ; Eberl, K.
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Date of publication of this fulltext: 21 Sep 2009 07:21


Abstract

We probe the electronic shell structure of quasiatomic systems, realized in GaAs-AlGaAs quantum dots, by resonant Raman spectroscopy. We observe a series of discrete spin-density excitations, whose energies are very close to single-particle level spacings in a quantum dot. The combined information from experiments at different wave vectors in the lateral direction and from investigations with ...

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