Quasicrystalline tenfold symmetry order in boron compounds

Yoshinobu Miyazaki, Junpei Okada, Eiji Abe, Yoshihiko Yokoyama, Kaoru Kimura

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We report the first quasicrystalline boride formed in a rapidly-solidified B40Ti12Ru48 alloy, whose diffraction pattern clearly reveals a tenfold rotation axis of decagonal symmetry. The local structure appears to be significantly deviated from an ideal quasicrystal, but the long-range bond-orientationalorder restricted by linkages between the robust unit-clusters has successfully generated the apparent 10-fold-symmetric Bragg peaks. This may be attributed to an extreme case of random-tiling quasicrystals, which enable the occurrence of local tiling disorders to account for entropy.

Original languageEnglish
Article number073601
Journaljournal of the physical society of japan
Volume79
Issue number7
DOIs
Publication statusPublished - 2010 Jul

Keywords

  • Aperiodic structure
  • Boride
  • Boron
  • Electron diffraction
  • Melt quenching
  • Quasicrystal
  • Scanning transmission electron microscopy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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