Fe23B6 -type quasicrystal-like structures without icosahedral atomic arrangement in an Fe-based metallic glass

Akihiko Hirata, Yoshihiko Hirotsu, Kenji Amiya, Nobuyuki Nishiyama, Akihisa Inoue

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Abstract

We have found nanoscale quasicrystal-like structural states exhibiting pseudotenfold nanobeam electron-diffraction patterns in the course of nanocrystallization process of an Fe23B6 structure in an (Fe0.5Co0.5)72B20Si 4Nb4 metallic glass. An existence of the intermediate states between the quasicrystal-like and Fe23B6 structures indicates that the quasicrystal-like structure is approximate to the Fe 23B6 structure including no icosahedral atomic arrangement. The pseudotenfold electron-diffraction patterns are understood from a combination of three types of tiles found in the Fe23B6 structure. The three types of tiles can produce decagonal units which do not have any icosahedral atomic arrangement.

Original languageEnglish
Article number140201
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume80
Issue number14
DOIs
Publication statusPublished - 2009 Oct 29
Externally publishedYes

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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