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Electron and exciton energy spectra in self‐assembled InGaAs/GaAs ring‐like nanostructures
Author(s) -
Fomin V. M.,
Gladilin V. N.,
Devreese J. T.,
Kleemans N. A. J. M.,
Bozkurt M.,
Koenraad P. M.
Publication year - 2008
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200879817
Subject(s) - exciton , quantum tunnelling , nanostructure , scanning tunneling microscope , condensed matter physics , energy spectrum , ring (chemistry) , spectral line , electron , quantum dot , materials science , coulomb , chemistry , molecular physics , optoelectronics , physics , nanotechnology , quantum mechanics , organic chemistry
Theoretical analysis of the electron energy spectrum and the magnetization of an electron in a strained In x Ga 1– x As/GaAs self‐assembled quantum ring (SAQR) is performed with realistic parameters, determined from the cross‐sectional scanning‐tunneling microscopy characterization of that nanostructure. The effects of the Coulomb interaction on the energy spectrum of an exciton in a SAQR as well as on the optical‐transition probabilities are studied within our model of a SAQR. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)