Simulations of High Resolution Electron Microscopy Images of Icosahedral Quasicrystals

Marianne Quiquandon (1) , Denis Gratias (1) , Jean-Tristan Beauchesne (1)

1 LEM - ONERA - CNRS - Laboratoire d'étude des microstructures [Châtillon]

We apply the scattering matrix formulation for calculating the images of high resolution electron microscopy (HREM) images of quasiperiodic crystals and discuss their basic properties. The main feature in the image formation comes from the truncation effects of the q-basis, especially the perpendicular components that must be numerous enough for properly reproducing quasiperiodicity. A comparison between two types of atomic structural model is presented that illustrate the difficulties of differentiating the models from the HREM observations.

Mots clés: Physical Sciences

Marianne Quiquandon, Denis Gratias, Jean-Tristan Beauchesne. Simulations of High Resolution Electron Microscopy Images of Icosahedral Quasicrystals. Philosophical Magazine, 2008, 88 (13-15), pp.1941-1948. ⟨10.1080/14786430801914912⟩. ⟨hal-00513864⟩