Nickel monolayers on copper surfaces: CO adsorption and ni diffusion

Shu Yang, Mingren Yu, George Meigs, X. H. Feng, E. Garfunkel

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Nickel monolayers on the Cu(111) surface have been studied in an attempt to understand metal-metal interface mixing. High resolution energy loss (HREEL) spectra of carbon monoxide is used to monitor the surface by distinguishing between CO adsorption on top and bridge sites of the nickel overlayer. Results are discussed for nickel deposition at temperatures in the range of 300-475 K. Room temperature nickel deposition leads to nickel island formation; at slightly elevated temperatures nickel and copper mix in the first layer ; and by 475 K, nickel becomes significantly covered by copper, the thermodynamically favored configuration.

Original languageEnglish
Pages (from-to)L777-L785
JournalSurface Science
Volume205
Issue number1-2
DOIs
Publication statusPublished - Oct 3 1988

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ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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