Angstrom-beam electron diffraction of amorphous materials

Akihiko Hirata, Mingwei Chen

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We have developed an Angstrom-beam electron diffraction (ABED) technique for structure characterization of amorphous materials using a state-the-of-art spherical aberration-corrected scanning transmission electron microscope. The focused electron beam with a diameter of ~ 0.4 nm, comparable to the size of short range order in glasses, enables us to directly detect local atomic structure of disordered materials in a diffraction mode. In this paper we briefly introduce the basic principle of ABED and preliminary applications in structural characterization of metallic glasses and oxide glasses. We also discuss the effect of sample thickness and the method to study medium range order of glassy materials using ABED.

Original languageEnglish
Pages (from-to)52-58
Number of pages7
JournalJournal of Non-Crystalline Solids
Volume383
DOIs
Publication statusPublished - 2014 Jan 1

Keywords

  • Electron diffraction
  • Glass
  • Medium-range order
  • Scanning transmission electron microscopy
  • Short-range order

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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