Comparative study in annealing effects of Ag/Co/Pt(1 1 1) and Co/Ag/Pt(1 1 1) ultrathin films

C. W. Su, Y. E. Wu, Ching-Song Shern

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Low-energy electron diffraction (LEED), Auger electron spectroscopy and depth profile were used to study the growth and annealing effects of mirror systems: Ag/Co/Pt(1 1 1) and Co/Ag/Pt(111). An anomalous behavior of specular beam intensity of LEED versus temperature was found in the annealing process for Ag/Co/Pt(111). A dramatic increase of the beam intensity occurs after Co-Pt alloy formation is complete. The exchange between Co and Ag atoms of Co/Ag/Pt(111) occurs when the annealing temperature is high enough. The Co-Pt alloy develops after the atomic exchange is complete. The chemical compositions at the interfaces of these two ultrathin films were investigated. The mechanisms of the different behaviors of the two systems in the annealing processes are discussed.

Original languageEnglish
Pages (from-to)898-902
Number of pages5
JournalSurface Science
Volume482-485
Issue numberPART 2
DOIs
Publication statusPublished - 2001 Jan 1

Fingerprint

Ultrathin films
Annealing
annealing
Low energy electron diffraction
electron diffraction
Auger electron spectroscopy
Auger spectroscopy
electron spectroscopy
Ion exchange
chemical composition
Mirrors
mirrors
Atoms
Temperature
energy
profiles
Chemical analysis
atoms
temperature

Keywords

  • Auger electron spectroscopy
  • Cobalt
  • Low energy electron diffraction (LEED)
  • Metal-metal interfaces
  • Platinum
  • Silver
  • Surface diffusion

ASJC Scopus subject areas

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

Cite this

Comparative study in annealing effects of Ag/Co/Pt(1 1 1) and Co/Ag/Pt(1 1 1) ultrathin films. / Su, C. W.; Wu, Y. E.; Shern, Ching-Song.

In: Surface Science, Vol. 482-485, No. PART 2, 01.01.2001, p. 898-902.

Research output: Contribution to journalArticle

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