Formation of an Al-Co decagonal quasicrystal from a τ2-inflated Al13Co4 approximant

Koh Saitoh, Tadahiro Yokosawa, Michiyoshi Tanaka, An Pang Tsai

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5 Citations (Scopus)


A model for the formation of an Al-Co decagonal quasicrystal with space group P10̄m2 from a τ2-inflated monoclinic Al13Co4 approximant is constructed on the basis of the observation of high-resolution electron microscope images. It is shown that star- and crown-shaped structural units of the Al-Co decagonal quasicrystal are formed by combining elongated hexagon tiles or the basic structural unit of τ2-Al13Co4.

Original languageEnglish
Pages (from-to)2886-2889
Number of pages4
Journaljournal of the physical society of japan
Issue number9
Publication statusPublished - 1999 Sep
Externally publishedYes


  • Fivefold atom-cluster
  • Noncentrosymmetric decagonal quasicrystal
  • Quasicrystal formation
  • τ-AlCo approximant

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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