The structure of a frank-kasper decagonal quasicrystal in the Zn-Mg-Dy system: Comparison with the Al-Ni-Co system

E. Abe, T. J. Sato, A. P. Tsai

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The structure of a new decagonal quasicrystal in the Zn-Mg-Dy system has been studied by transmission electron microscopy and compared with that of a decagonal Al-Ni-Co (d-(Al-Ni-Co)) phase with primitive structure. Electron diffraction patterns of these two d phases reveal the same appearance of the Bragg reflections but with different unit lengths. The characteristic length, in and normal to the quasiperiodic plane, are a = 0.227 nm and c = 0.255nm for d-(Zn-Mg-Dy), and a = 0.20 nm and c = 0.20 nm for d-(Al-Ni-Co); the c/a ratios are therefore also different. The local atomic arrangement of the d-(Zn-Mg-Dy) is proposed to be a tetrahedrally close-packed structure.

Original languageEnglish
Pages (from-to)205-211
Number of pages7
JournalPhilosophical Magazine Letters
Volume77
Issue number4
DOIs
Publication statusPublished - 1998 Apr
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'The structure of a frank-kasper decagonal quasicrystal in the Zn-Mg-Dy system: Comparison with the Al-Ni-Co system'. Together they form a unique fingerprint.

Cite this