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Photoluminescence of stacked self-assembled InP quantum dots in high magnetic fields

Hayne, M and Provoost, Rik and Zundel, Markus K and Manz, Yvonne M and Eberl, Karl and Moshchalkov, Victor V (2000) Photoluminescence of stacked self-assembled InP quantum dots in high magnetic fields. Physica E: Low-dimensional Systems and Nanostructures, 8 (2). pp. 125-128. ISSN 1386-9477

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Abstract

We have measured the photoluminescence of stacked layers of self-assembled InP quantum dots in magnetic fields up to 50 T. In the samples with three stacked layers of dots strong electronic coupling was clearly observed for layer separations of 2 and 4 nm. For a sample with only two stacked layers of dots (separated by 4 nm) no coupling was observed. We attribute this difference in behaviour to a model in which the coupling is via holes that are weakly bound in the GaInP layers between the dots. Since the doubly stacked layers have only one such layer, no coupling is possible. (C) 2000 Elsevier Science B.V. All rights reserved.

Item Type: Article
Journal or Publication Title: Physica E: Low-dimensional Systems and Nanostructures
Uncontrolled Keywords: self-assembled quantum dots ; InP ; pulsed magnetic fields
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 49851
Deposited By: ep_importer_pure
Deposited On: 20 Sep 2011 09:32
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 19:32
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/49851

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