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Interplay between quantum confinement and surface effects in thickness selective stability of thin Ag and Eu films

TitleInterplay between quantum confinement and surface effects in thickness selective stability of thin Ag and Eu films
Publication TypeJournal Article
Year of Publication2017
AuthorsLiu, XJ, Wang, CZ
JournalJournal of Physics-Condensed Matter
Volume29
Pagination185504
Date Published05
Type of ArticleArticle
ISBN Number0953-8984
Accession NumberWOS:000398313000001
Keywordsaugmented-wave method, basis-set, First-principles calculation, Graphene, growth-morphology, metal-films, nanostructures, physics, quantum well states, states, surface states, thickness selective stability, total-energy calculations, work function
Abstract

Using first-principles calculations, we show that both face-centered cubic (fcc) Ag (1 1 0) ultrathin films and body-centered cubic (bcc) Eu(1 1 0) ultrathin films exhibit thickness selective stability. However, the origin of such thickness selection is different. While the thickness selective stability in fcc Ag(1 1 0) films is mainly due to the well-known quantum well states ascribed to the quantum confinement effects in free-electron-like metal films, the thickness selection in bcc Eu(1 1 0) films is more complex and also strongly correlated with the occupation of the surface and surface resonance states.

DOI10.1088/1361-648X/aa6556
Custom 1

Surface Structures

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Exploratory Theory

Alternate JournalJ. Phys.-Condes. Matter