Growth and surface alloying of Fe on Pt(997)

Tae-Yon Lee; Samuel Sarbach; Klaus Kuhnke; Klaus Kern

doi:10.1016/j.susc.2006.06.014

Growth and surface alloying of Fe on Pt(997)

Materials Science 2009-11-11 v1

Authors: Tae-Yon Lee , Samuel Sarbach , Klaus Kuhnke , Klaus Kern

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

The growth of ultra-thin layers of Fe on the vicinal Pt(997) surface is studied by thermal energy He atom scattering (TEAS) and Auger electron spectroscopy (AES) in the temperature range between 175K and 800K. We find three distinct regimes of qualitatively different growth type: Below 450K the formation of a smooth first monolayer, at and above 600K the onset of bulk alloy formation, and at intermediate temperature 500K - 550K the formation of a surface alloy. Monatomic Fe rows are observed to decorate the substrate steps between 175K and 500K. The importance of the high step density is discussed with respect to the promotion of smooth layer growth and with respect to the alloying process and its kinetics.

Keywords

surface growth Fe on Pt surface alloying step density Auger electron spectroscopy

Cite

@article{arxiv.cond-mat/0504337,
  title  = {Growth and surface alloying of Fe on Pt(997)},
  author = {Tae-Yon Lee and Samuel Sarbach and Klaus Kuhnke and Klaus Kern},
  journal= {arXiv preprint arXiv:cond-mat/0504337},
  year   = {2009}
}

Related papers

View all related →