Electron channelling effect in an Al-Fe-Cu quasicrystal

Daisuke Shindo, Kenji Hiraga, Makoto Hirabayashi, Akihisa Inoue, Tsuyoshi Masumoto, Tim Williams

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Abstract

Strong electron channelling effect has been observed in a quasicrystal of Al-Cu-Fe alloy which has a near-perfect icosahedral symmetry and low phason density. When the electron beam was setparallel with one of the high symmetry zone axes such as the 5-fold and 2-fold, the intensities of the characteristic X-ray of Fe and Cu relative to that of Al were much stronger than under non-channelling conditions. This result directly indicates that both Fe and Cu atoms occupy their own definite atomic sites different from those of the host element Al.

Original languageEnglish
Pages (from-to)L688-L689
JournalJapanese Journal of Applied Physics
Volume28
Issue number4 A
DOIs
Publication statusPublished - 1 Jan 1989
Externally publishedYes

Keywords

  • Al-Cu-Fe
  • Analytical electron microscopy
  • Axial channelling
  • EDX analysis
  • Electron channelling effect
  • Quasicrystal

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