Model study of adsorbed metallic quantum dots: Na on Cu(111)
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© 2002 American Physical Society (APS). This is the accepted version of the following article: Torsti, T. & Lindberg, V. & Puska, Martti J. & Hellsing, B. 2002. Model study of adsorbed metallic quantum dots: Na on Cu(111). Physical Review B. Volume 66, Issue 23. 235420/1-10. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.66.235420, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.66.235420.
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2002
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Language
en
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235420/1-10
Series
Physical Review B, Volume 66, Issue 23
Abstract
We model electronic properties of the second-monolayer Na adatom islands (quantum dots) on the Cu(111) surface covered homogeneously by the first Na monolayer. An axially symmetric three-dimensional jellium model, taking into account the effects due to the first Na monolayer and the Cu substrate, has been developed. The electronic structure is solved within the local-density approximation of the density-functional theory using a real-space multigrid method. The model enables the study of systems consisting of thousands of Na atoms. The results for the local density of states are compared with differential conductance (dI/dV) spectra and constant current topographs from scanning tunneling microscopy.Description
Keywords
Na atom islands, Na monolayer
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Citation
Torsti, T. & Lindberg, V. & Puska, Martti J. & Hellsing, B. 2002. Model study of adsorbed metallic quantum dots: Na on Cu(111). Physical Review B. Volume 66, Issue 23. 235420/1-10. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.66.235420.