A practical guide to the measurement of structure phases and magnitudes by three-beam convergent beam electron diffraction

Philip N H Nakashima; Alexander F Moodie; Joanne Etheridge

doi:10.1016/j.ultramic.2008.03.002

A practical guide to the measurement of structure phases and magnitudes by three-beam convergent beam electron diffraction

Ultramicroscopy. 2008 Aug;108(9):901-10. doi: 10.1016/j.ultramic.2008.03.002. Epub 2008 Mar 18.

Authors

Philip N H Nakashima¹, Alexander F Moodie, Joanne Etheridge

Affiliation

¹ Monash Centre for Electron Microscopy and Department of Materials Engineering, Monash University, Victoria 3800, Australia. philip.nakashima@eng.monash.edu.au

PMID: 18501518
DOI: 10.1016/j.ultramic.2008.03.002

Abstract

The practical details for the direct measurement of structural phases and magnitudes from centrosymmetric crystals using three-beam convergent beam electron diffraction patterns are given. These details are presented as a step-by-step guide for easy implementation. Each step is illustrated with worked examples from alpha-Al(2)O(3). Twenty-nine measurements of 6 independent three-phase invariants and 87 measurements of 10 independent structure magnitudes have been made.