27
views
0
recommends
+1 Recommend
1 collections
0
shares
• Record: found
• Abstract: found
• Article: found
Is Open Access

# Crystal truncation rods in kinematical and dynamical x-ray diffraction theories

Preprint

Bookmark
There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

### Abstract

Crystal truncation rods calculated in the kinematical approximation are shown to quantitatively agree with the sum of the diffracted waves obtained in the two-beam dynamical calculations for different reflections along the rod. The choice and the number of these reflections are specified. The agreement extends down to at least $$\sim 10^{-7}$$ of the peak intensity. For lower intensities, the accuracy of dynamical calculations is limited by truncation of the electron density at a mathematically planar surface, arising from the Fourier series expansion of the crystal polarizability.

### Author and article information

###### Journal
28 February 2007
cond-mat/0702679
10.1103/PhysRevB.75.245425