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Internal electron-electron interactions in one-dimensional systems detected by Raman spectroscopy

Steinebach, C. ; Krahne, Roman ; Biese, G. ; Schüller, Christian ; Heitmann, D. ; Eberl, Karl
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Date of publication of this fulltext: 25 Sep 2009 08:10


We have investigated experimentally and theoretically electronic Raman excitations in GaAs-AlxGa1-xAs quantum wires in magnetic fields. In both the experiments and the calculations we find strong anticrossings of the observed confined magnetoplasmon modes in the vicinity of 2ωc, where ωc is the cyclotron-resonance frequency. The observed splittings and anticrossings arise from internal Coulomb ...


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