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          Institute: Fritz-Haber-Institut     Collection: Theory     Display Documents



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ID: 293765.0, Fritz-Haber-Institut / Theory
Au wetting and nanoparticle stability on GaAs(111)B
Authors:Hilner, E.; Mikkelsen, A.; Eriksson, J.; Andersen, J. N.; Lundgren, E.; Zakharov, A.; Yi, H.; Kratzer, Peter
Language:English
Date of Publication (YYYY-MM-DD):2006-12-21
Title of Journal:Applied Physics Letters
Journal Abbrev.:Appl. Phys. Lett.
Volume:89
Issue / Number:25
Start Page:251912-1
End Page:251912-3
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Au nanoparticles and Au films for growth of nanowires on the GaAs(111)B surface have been studied by a combination of experimental and theoretical techniques. If Au is present in either form, annealing to temperatures relevant for nanowire growth results in the formation of a thin Au wetting layer. Based on density functional theory calculations and experimental data, a structural model is proposed with an Au atom on every third threefold hollow hcp site of the Ga lattice. The authors observe that the stability of Au nanoparticles is governed by the presence of the wetting layer and outdiffusion of Au from the nanoparticles.
External Publication Status:published
Document Type:Article
Communicated by:Matthias Scheffler
Affiliations:Fritz-Haber-Institut/Theory
External Affiliations:Department of Synchrotron Radiation Research, Institute of Physics, University of Lund, S-221 00 Lund, Sweden

MAX-lab, University of Lund, S-221 00 Lund, Sweden
Identifiers:URL:http://scitation.aip.org/getpdf/servlet/GetPDFServ... [only for subscriber]
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