| Issue |
Eur. Phys. J. Appl. Phys.
Volume 24, Number 1, October 2003
|
|
|---|---|---|
| Page(s) | 21 - 26 | |
| Section | Surfaces, Interfaces and Films | |
| DOI | https://doi.org/10.1051/epjap:2003058 | |
| Published online | 03 September 2003 | |
https://doi.org/10.1051/epjap:2003058
About non-Gaussian behaviour of the Debye-Waller factor at large scattering vectors
1
Byelorussian State University, F. Skariny Av. 4, 220050 Minsk,
Republic of Belarus
2
Bruker AXS, Östl. Rheinbrückenstr. 50, 76187 Karlsruhe, Germany
Corresponding author: Alex.ulyanenkov@bruker-axs.de
Received:
12
April
2003
Revised:
18
June
2003
Accepted:
19
June
2003
Published online:
3
September
2003
The modified expression for Debye-Waller factor is derived for the scattering of X-rays from rough surfaces and interfaces. For the large values of scattering vector, the non-Gaussian behaviour of this factor is predicted. This effect can be essential for interpretation of X-ray reflectivity from very rough surfaces and high-order X-ray diffraction data. The experimental X-ray reflectivity measurements are interpreted using the derived expression.
PACS: 61.10.Dp – Theories of diffraction and scattering / 61.10.-i – X-ray diffraction and scattering / 61.10.Kw – X-ray reflectometry (surfaces, interfaces, films)
© EDP Sciences, 2003
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