Title: Magnetophotoluminescence of stacked self-assembled InP quantum dots
Authors: Provoost, R ×
Hayne, M
Moshchalkov, Victor
Zundel, MK
Eberl, K #
Issue Date: 1999
Series Title: Applied Physics Letters vol:75 issue:6 pages:799-801
Conference: date:Katholieke Univ Leuven, Vaste Stoffys & Magnetisme Lab, B-3001 Louvain, Belgium; Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
Abstract: We report magnetophotoluminescence measurements of stacked layers of self-assembled InP quantum dots. With a magnetic field applied in the growth direction we have determined the exciton reduced mass from the field dependence of the photoluminescence energy. By applying a magnetic field perpendicular to the growth direction, we have analyzed the spatial confinement of the dots in the growth direction. We observe a large increase in the shift of the exciton energy between 0 and 50 T when the thickness of the GaInP spacer layer between the dots is reduced from 8 to 4 nm. This indicates a decrease in spatial confinement in the growth direction which we attribute to strong electronic coupling between vertically stacked dots. (C) 1999 American Institute of Physics. [S0003-6951(99)03832-2].
ISSN: 0003-6951
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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