Alloy formation in the Co/Pd{111} system - A study with medium energy ion scattering and scanning tunnelling microscopy

Alexander Murdoch, A. G. Trant, J. Gustafson, T. E. Jones, T. C. Q. Noakes, P. Bailey, C. J. Baddeley*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The growth and annealing behaviour of ultrathin Co films on Pd{111} have been investigated by medium energy ion scattering and scanning tunnelling microscopy. Incremental annealing of Co/Pd{111} results in intermixing and the formation of an ordered CoPd alloy at 560 K. Under these conditions, MEIS reveals that the top three layers consist of an approximately equimolar mixture of Co and Pd. STM and LEED provide evidence that the overlayer has a p(2 × 1) registry leading to the conclusion that the surface is terminated in the {111} plane of the CoPd L10 structure.
Original languageEnglish
Pages (from-to)212-219
Number of pages8
JournalSurface Science
Volume608
Early online date18 Oct 2012
DOIs
Publication statusPublished - Feb 2013

Keywords

  • METHANE
  • CATALYSTS
  • Surface segregation
  • THIN-FILMS
  • Medium energy ion scattering
  • Scanning tunnelling microscopy
  • HYDROGENATION
  • SURFACE
  • Cobalt
  • SOL/GEL METHOD
  • CU(111)
  • GROWTH
  • Alloys
  • ULTRATHIN CO FILMS
  • Palladium
  • PD(111)

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