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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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Author

  • M. Kuzmin
  • M. P. J. Punkkinen
  • P. Laukkanen
  • R. E. Perala
  • V. Tuominen
  • J. J. K. Lang
  • M. Ahola-Tuomi
  • J. Dahl
  • Balasubramanian Thiagarajan
  • B. Johansson
  • L. Vitos
  • I. J. Vayrynen
Show all

Summary, in English

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.

Department/s

Publishing year

2010

Language

English

Publication/Series

Physical Review B (Condensed Matter and Materials Physics)

Volume

82

Issue

11

Document type

Journal article

Publisher

American Physical Society

Topic

  • Natural Sciences
  • Physical Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 1098-0121