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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2006     Display Documents



  history
ID: 306215.0, MPI für Festkörperforschung / FKF Publikationen 2006
Structural investigation of hierarchically self-assembled GaAs/AlGaAs quantum dots
Authors:Lenz, A.; Timm, R.; Eisele, H.; Ivanova, L.; Martin, D.; Vosseburger, V.; Rastelli, A.; Schmidt, O. G.; Dahne, M.
Language:English
Date of Publication (YYYY-MM-DD):2006
Title of Journal:physica status solidi (b)
Volume:243
Issue / Number:15
Start Page:3976
End Page:3980
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:Recent investigations of self-organized unstrained inverted GaAs/AlGaAs
quantum dots, prepared by a combination of Stranski-Krastanov growth
mode and an in situ etching technique, show GaAs quantum dots with
large confinement energy and high size homogeneity. Here we present
first cross-sectional scanning tunneling microscopy data of these
quantum dots, characterized by a lateral extension of about 35 nm,
heights of about 5-6 nm, and a reversed truncated pyramidal shape. We
further observe a decomposition of the AlGaAs host layers and a
roughening of the AlGaAs/GaAs interfaces. (C) 2006 WILEY-VCH Verlag
GmbH & Co. KGaA, Weinheim.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Festkörperforschung
External Affiliations:Tech Univ Berlin, Inst Festkorperphys, D-10623 Berlin, Germany.
; Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany.
Identifiers:ISI:000242906300026 [ID No:1]
ISSN:0370-1972 [ID No:2]
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