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 language | English |
|---|---|
| Pages (from-to) | 52-58 |
| Number of pages | 7 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 383 |
| DOIs | |
| Publication status | Published - 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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Cite this
Hirata, A., & Chen, M. (2014). Angstrom-beam electron diffraction of amorphous materials. Journal of Non-Crystalline Solids, 383, 52-58. https://doi.org/10.1016/j.jnoncrysol.2013.03.010