Spin-and Charge-Density Excitations in Quantum Dots: A Raman Study

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.9696

Schüller, Christian ; Steinebach, Christoph ; Heitmann, Detlef

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Veröffentlichungsdatum dieses Volltextes: 05 Okt 2009 13:26

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Zusammenfassung

In this article we review our recent experimental and theoretical investigations of electronic excitations in GaAs–AlGaAs quantum dots. In the experimental structures we have observed collective spin- (SDE) and charge-density excitations (CDE), and, under conditions of extreme resonance, excitations which can be attributed to nearly unrenormalized single-particle-like transitions (SPE). We ...