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Quantum well states, resonances and stability of metallic overlayers

AuthorsOgando, E.; Zabala, Nerea ; Chulkov, Eugene V. ; Puska, M. J.
KeywordsMetal overlayers
Quantum well states (QWSs)
Quantum well resonances (QWRs)
Confining gap
Surface Science
Issue Date26-Jun-2008
PublisherInstitute of Physics Publishing
CitationJ. Phys.: Condens. Matter 20: 315002 (2008)
AbstractThe role of quantum well states (QWSs) and quantum well resonances (QWRs) in the stability of metallic overlayers is studied. When the substrate presents a confining gap, as it is the case of Cu(111), the stability is determined by QWSs and there is experimental evidence of the existence of magic thicknesses. For overlayers which do not have QWSs, as those grown on Al(111), we explore the existence of thicknesses of enhanced stability due to QWRs by comparing the strength of the oscillations in the surface energy.
Description8 pages, 7 figures.-- Printed version published on Aug 6, 2008.
Publisher version (URL)http://dx.doi.org/10.1088/0953-8984/20/31/315002
Appears in Collections:(CFM) Artículos
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