@inproceedings{d13ca3347b8245f196a5b7b5f906ba79,
title = "Probing spin states in AlGaAs/GaAs few-electron quantum dots by inelastic light scattering",
abstract = "Resonant inelastic light scattering provides a venue for the study of spin transitions and interactions in quantum dots (QDs) with few electrons. Here we present the observation of inter-shell excitations in GaAs/AlGaAs nanofabricated QDs containing four electrons. The ground state with four electrons dictated by Hund's rule is a triplet with total spin S = 1 so that peculiar to this configuration there are two monopole inter-shell spin modes with changes ΔS = ±1 that connect the triplet state to the excited states with S = 0 and S = 2, respectively. We present light scattering spectra that offer evidence of these excitations. The light scattering spectra are interpreted by numerical evaluations within a full configuration interaction approach.",
keywords = "Electron correlation, Inelastic light scattering, Quantum dots",
author = "S. Kalliakos and \{Pascual Garc{\'i}a\}, C. and V. Pellegrini and A. Pinczuk and Dennis, \{B. S.\} and Pfeiffer, \{L. N.\} and West, \{K. W.\} and M. Rontani and G. Goldoni and E. Molinari",
year = "2007",
doi = "10.1063/1.2730212",
language = "English (US)",
isbn = "9780735403970",
series = "AIP Conference Proceedings",
pages = "959--960",
booktitle = "Physics of Semiconductors - 28th International Conference on the Physics of Semiconductors, ICPS 2006, Part A and B",
note = "28th International Conference on the Physics of Semiconductors, ICPS 2006 ; Conference date: 24-07-2006 Through 28-07-2006",
}