Surfactant-mediated growth of epitaxial films on quasiperiodic surfaces

Masahiko Shimoda, Junqing Guo, Taku J. Sato, An Pang Tsai

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

We have succeeded for the first time in inducing epitaxial growth of metal films on quasiperiodic surfaces. Depositions of Au onto the tenfold surface of a decagonal Al-Ni-Co quasicrystal were originally attempted to create a quasicrystal of a single element as an epitaxial film. Although the desired film was not obtained on the clean surface, a multiply twinned AuAl2 crystalline layer with a (110)-oriented surface was formed with the aid of an In pre-deposition layer. The presence of pre-deposited In also worked as a surfactant for the case of Au-deposition onto the fivefold surface of an icosahedral Al-Pd-Mn quasicrystal and promoted the formation of an ordered film of Au-Al alloy. X-ray photoelectron diffraction images from this ordered film show that the alloy has an icosahedral structure as a long range order, suggesting the formation of a quasicrystalline film.

Original languageEnglish
Pages (from-to)K1151-K1155
JournalMaterials Research Society Symposium - Proceedings
Volume643
Publication statusPublished - 2001 Dec 1
Externally publishedYes
EventQuasicrystals - Preparations, Properties and Applications - Boston, MA, United States
Duration: 2000 Nov 272000 Nov 30

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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