Structure evolution of Ni ultrathin films on Pt(1 1 1)

C. W. Su, H. Y. Ho, Ching-Song Shern, R. H. Chen

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Low-energy electron diffraction and Auger electron spectroscopy were used to study the initial growth and the alloy formation of Ni ultrathin films on Pt(1 1 1) surface. Several interesting structural phases were observed in this system: pseudo-(1 × 1), (√3 × √3)R30°, coherent epitaxy, incoherent epitaxy, and (2 × 2). The phase diagram was determined by LEED. In addition, the formation of Ni-Pt alloy was investigated at various Ni coverages. The starting temperature for the alloy formation increases significantly as the Ni thin films turn into three-dimensional islands.

Original languageEnglish
Pages (from-to)103-108
Number of pages6
JournalSurface Science
Volume499
Issue number2-3
DOIs
Publication statusPublished - 2002 Mar 1

Fingerprint

Ultrathin films
Epitaxial growth
epitaxy
Low energy electron diffraction
Auger electron spectroscopy
Auger spectroscopy
Phase diagrams
electron spectroscopy
electron diffraction
phase diagrams
Thin films
thin films
Temperature
temperature
energy

Keywords

  • Alloys
  • Auger electron spectroscopy
  • Epitaxy
  • Low energy electron diffraction (LEED)
  • Metallic films
  • Nickel
  • Platinum
  • Surface structure, morphology, roughness, and topography

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Structure evolution of Ni ultrathin films on Pt(1 1 1). / Su, C. W.; Ho, H. Y.; Shern, Ching-Song; Chen, R. H.

In: Surface Science, Vol. 499, No. 2-3, 01.03.2002, p. 103-108.

Research output: Contribution to journalArticle

Su, C. W. ; Ho, H. Y. ; Shern, Ching-Song ; Chen, R. H. / Structure evolution of Ni ultrathin films on Pt(1 1 1). In: Surface Science. 2002 ; Vol. 499, No. 2-3. pp. 103-108.
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