On the origin of Ru bilayer island growth on Pt(111)

A. Bergbreiter, A. Berkó, P. M. Erne, H. E. Hoster, R. J. Behm

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Depending on the growth temperature, Ru growth on Pt(111) proceeds preferentially via nucleation and growth of bilayer islands [Hoster HE, Iwasita T, Baumgärtner H, Vielstich W. Phys Chem Chem Phys 2001;3:337]. The physical origin for this growth behaviour was investigated by scanning tunnelling microscopy. The role of the lattice mismatch is elucidated by comparing Ru growth on Pt(111) with that on a pseudomorphic Pt monolayer film on an Ru(0001) substrate, where lattice misfit is absent. The results are interpreted using existing concepts on the adsorption properties of bimetallic surfaces, the consequences of our results and our mechanistic interpretation on the understanding of bilayer island growth in metal-on-metal epitaxy in general are discussed.

Original languageEnglish
Pages (from-to)13-18
Number of pages6
JournalVacuum
Volume84
Issue number1
DOIs
Publication statusPublished - Aug 25 2009

Keywords

  • Bilayer island growth
  • Epitaxial growth
  • Platinum
  • Ruthenium
  • Scanning tunnelling microscopy

ASJC Scopus subject areas

  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films

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  • Cite this

    Bergbreiter, A., Berkó, A., Erne, P. M., Hoster, H. E., & Behm, R. J. (2009). On the origin of Ru bilayer island growth on Pt(111). Vacuum, 84(1), 13-18. https://doi.org/10.1016/j.vacuum.2009.04.001