Surfactant-mediated growth of AuAl2 film on a decagonal Al72Ni12CO16 quasicrystal

M. Shimoda, J. Q. Guo, T. J. Sato, A. P. Tsai

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


In an effort to produce an epitaxial quasicrystalline film of simple substances, Au was deposited on the quasiperiodic surface of a decagonal Al72Ni12Co16 quasicrystal. In the case of a submonolayer deposition, the Au layer is crystallized with annealing and transformed into a multiply twinned AuAl2 crystalline layer with (110)-oriented surface. This was not the case for multilayer Au. However, predeposition of In on the quasiperiodic surface affected the behavior of the Au overlayer significantly. It was found that In acted as a surfactant and promoted the epitaxial crystallization of the Au overlayer, giving rise to the formation of multiply twinned AuAl2 crystals with annealing.

Original languageEnglish
Pages (from-to)784-788
Number of pages5
JournalSurface Science
Issue numberPART 2
Publication statusPublished - 2001
Externally publishedYes


  • Crystallization
  • Gold
  • Growth
  • Indium
  • Photoelectron diffraction
  • Reflection high-energy electron diffraction (RHEED)
  • Surface structure, morphology, roughness, and topography

ASJC Scopus subject areas

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


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