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



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ID: 306170.0, MPI für Festkörperforschung / FKF Publikationen 2006
Dendrochronology of strain-relaxed islands
Authors:Merdzhanova, T.; Kiravittaya, S.; Rastelli, A.; Stoffel, M.; Denker, U.; Schmidt, O.
Language:English
Date of Publication (YYYY-MM-DD):2006
Title of Journal:Physical Review Letters
Volume:96
Issue / Number:22
Sequence Number of Article:226103
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:We report on the observation and study of tree-ring structures below
dislocated SiGe islands (superdomes) grown on Si(001) substrates.
Analogous to the study of tree rings (dendrochronology), these
footprints enable us to gain unambiguous information on the growth and
evolution of superdomes and their neighboring islands. The temperature
dependence of the critical volume for dislocation introduction is
measured and related to the composition of the islands. We show clearly
that island coalescence is the dominant pathway towards dislocation
nucleation at low temperatures, while at higher temperatures anomalous
coarsening is effective and leads to the formation of a depletion
region around superdomes.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Festkörperforschung
External Affiliations:Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany.
Identifiers:ISI:000238161400037 [ID No:1]
ISSN:0031-9007 [ID No:2]
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