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Atomic structure of Yb/Si(100)(2X6): Interrelation between the silicon dimer arrangement and Si 2p photoemission line shape
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2010 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 82, no 11, 113302- p.Article in journal (Refereed) Published
Abstract [en]

Combining photoelectron spectroscopy and density-functional theory calculations, we have studied the atomic geometry of Yb/Si(100)(2 X 6) reconstruction and the mechanisms responsible for its stabilization as well as the influence of this reconstruction on Si 2p core-level photoemission. The analysis of measured and calculated surface core-level shifts supports the recently proposed model of the Yb/Si(100)(2 X 6). It involves, in agreement with valence-band measurements, unbuckled (symmetrical) silicon dimers, leading to unusually narrowed Si 2p line shape as compared to those of related systems. The origin of the symmetrical dimers in the (2 X 6) structure is discussed in the context of previous results in literature.

Place, publisher, year, edition, pages
2010. Vol. 82, no 11, 113302- p.
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Condensed Matter Physics
URN: urn:nbn:se:kth:diva-26808DOI: 10.1103/PhysRevB.82.113302ISI: 000281516300001ScopusID: 2-s2.0-77957579890OAI: diva2:375809
QC 20101209Available from: 2010-12-09 Created: 2010-11-29 Last updated: 2010-12-09Bibliographically approved

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Johansson, BörjeVitos, Levente
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