Title: Magneto-photoluminescence studies of the influence of substrate orientation on the growth of InAs/GaAs quantum dots
Authors: Maes, J ×
Henini, M
Hayne, Manus
Patane, A
Pulizzi, F
Eaves, L
Main, PC
Moshchalkov, Victor #
Issue Date: Apr-2003
Publisher: Elsevier science bv
Series Title: Journal of Crystal Growth vol:251 issue:1-4 pages:186-191
Abstract: We have investigated the formation of InAs quantum dots grown by molecular beam epitaxy on GaAs substrates with different orientations using photoluminescence spectroscopy in pulsed magnetic fields (< 50 T). On increasing the amount of InAs deposited on (1 0 0)-oriented GaAs to 1.6 monolayer (ML), an abrupt change from one-dimensional to three-dimensional charge confinement is observed. For substrates cleaved along the (3 1 1)B plane, the charge confinement is found to be much weaker and gradually increases with the amount of InAs. At the highest coverage studied (1.9 ML), the quantum-dot confinement is equally effective for both substrate orientations. (C) 2002 Elsevier Science B.V. All rights reserved.
ISSN: 0022-0248
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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