| Demixing processes in AgPd superlattices. | |
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MedLine Citation:
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PMID: 21828587 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The present scanning tunneling microscopy (STM) study describes the growth of silver-palladium heterostructures at room temperature, with ab initio simulations of ordered AgPd phases supporting the interpretation of STM images. First, the growth of Pd on an Ag(111) surface proceeds in a multilayer mode, leading to the formation of a columnar structure. Then, upon Ag deposition on this structure, Ag and Pd partially mix and form a two-dimensional AgPd alloy on top of the columns. Finally, an atomically flat Ag(111) surface is restored, and two-dimensional growth continues. An interpretation of this peculiar growth mode including interfacial alloying is proposed based on thermodynamic and kinetic arguments. |
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Authors:
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J Dumont; R Sporken; M J Verstraete; J Ghijsen; X Gonze |
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Publication Detail:
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Type: Journal Article Date: 2009-06-19 |
Journal Detail:
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Title: Journal of physics. Condensed matter : an Institute of Physics journal Volume: 21 ISSN: 0953-8984 ISO Abbreviation: J Phys Condens Matter Publication Date: 2009 Aug |
Date Detail:
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Created Date: 2011-08-10 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101165248 Medline TA: J Phys Condens Matter Country: England |
Other Details:
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Languages: eng Pagination: 315002 Citation Subset: - |
Affiliation:
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Laboratoire de Physique des Matériaux Electroniques (LPME), Facultés Universitaires Notre-Dame de la Paix, Namur, B-5000, Belgium. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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