Structure of a cubic phase related to Cd-Mg-rare-earth quasicrystals

Eiji Abe, J. Q. Guo, A. P. Tsai

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The structure of a Cd68Mg12Dy20 crystalline phase denoted as the φ-phase, which has a composition close to that of the Cd66Mg21Dy13 icosahedral quasicrystalline phase, has been investigated by electron diffraction and scanning transmission electron microscopy (STEM). The φ phase has a fcc lattice with a = 21.6 Å. High-angle annular dark-field STEM with Z contrast confirms that the phase has the Cd45Sm11-type structure. The atomic cluster in the structure is shown to be characterized by a Friauf polyhedron with tetrahedral symmetry.

Original languageEnglish
Pages (from-to)563-568
Number of pages6
JournalPhilosophical Magazine Letters
Volume81
Issue number8
DOIs
Publication statusPublished - 2001 Aug
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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