English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/32071
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Magneto-optical properties of ring-shaped self-assembled InGaAs quantum dots

AuthorsHaft, Dirk; Schulhauser, C.; Govorov, Alexander O.; Warburton, Richard J.; Karrai, Khaled; García Martínez, Jorge Manuel ; Schoenfeld, W. V.; Petroff, Pierre M.
KeywordsSpectroscopy
Self-assembled systems
Quantum dots
Issue DateMar-2002
PublisherElsevier
CitationPhysica E 13(2-4): 165-169 (2002)
AbstractWe report on measurements of the magneto-optical properties of excitons confined in ring-shaped self-assembled semiconductor quantum dots. The rings are embedded in a field-effect structure that allows the number of confined electrons to be set electrostatically. In addition, electron-hole pairs are generated optically. The resulting photoluminescence spectra of neutral, singly and doubly charged excitons were measured at 4.2 K as a function of the applied magnetic field (0–9 T). The emission energy shows a diamagnetic shift as well as a Zeeman splitting. We measured the emission of different charge states of the exciton in many individual dots. In a few of the measured rings, a new behavior was observed, namely a clear departure from the low field diamagnetic dispersion for fields larger than 6 T.
Description5 páginas, 2 figuras.-- PACS: 78.67.Bf; 73.21.2b, 73.40.Rw; 78.66.Fd.
Publisher version (URL)http://dx.doi.org/10.1016/S1386-9477(01)00511-2
URIhttp://hdl.handle.net/10261/32071
DOI10.1016/S1386-9477(01)00511-2
ISSN1386-9477
Appears in Collections:(IMN-CNM) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.