Schüller, Christian and Keller, K. and Biese, G. and Ulrichs, E. and Rolf, L. and Steinebach, C. and Heitmann, Detlef and Eberl, K. (1998) Quasiatomic Fine Structure and Selection Rules in Quantum Dots. Physical Review Letters (PRL) 80 (12), pp. 2673-2676.
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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 applied magnetic fields reveals a distinct set of Raman allowed transitions (Δn,Δm), where changes Δn and Δm are changes in radial and angular momentum quantum numbers, respectively.
|Date:||23 March 1998|
|Institutions:||Physics > Institute of Experimental and Applied Physics > Chair Professor Lupton > Group Christian Schüller|
|Subjects:||500 Science > 530 Physics|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||21 Sep 2009 07:21|
|Last Modified:||20 Jul 2011 21:44|