Bloch wave symmetries in electron diffraction: applications to Friedels law, Gjonnes-Moodie lines and refraction at interfaces.

Ultramicroscopy

Department of Physics, University of Oslo, Blindern, P.O. Box 1048, 0316 Oslo, Norway.

Published: June 2011

We classify the point symmetries at the different points in the Brillouin zone for the 17 two-dimensional space groups and the symmetries of the Bloch waves for the 10 two-dimensional crystallographic point groups. Simple examples involving breakdown of Friedels law, Gjonnes-Moodie lines, and reflection and refraction at interfaces are presented.

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http://dx.doi.org/10.1016/j.ultramic.2010.08.003DOI Listing

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