X-ray fluorescence holography studies for a Cu3Au crystal

In this work we show that performing a numerical correction for beam attenuation and indirect excitation allows one to fully restore element sensitivity in the three-dimensional reconstruction of the atomic structure. This is exemplified by a comparison of atomic images reconstructed from holograms...

Full description

Saved in:
Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2015-12, Vol.364, p.136-141
Main Authors: Dąbrowski, K.M., Dul, D.T., Jaworska-Gołąb, T., Rysz, J., Korecki, P.
Format: Article
Language:English
Subjects:
Attenuation
Beams (radiation)
Crystals
Holography
Laboratory X-ray sources
Local atomic structure
Mathematical models
Monochromatic X-rays
Order–disorder
Phases
Three dimensional
X-ray fluorescence
X-ray holography
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this work we show that performing a numerical correction for beam attenuation and indirect excitation allows one to fully restore element sensitivity in the three-dimensional reconstruction of the atomic structure. This is exemplified by a comparison of atomic images reconstructed from holograms measured for ordered and disordered phases of a Cu3Au crystal that clearly show sensitivity to changes in occupancy of the atomic sites. Moreover, the numerical correction, which is based on quantitative methods of X-ray fluorescence spectroscopy, was extended to take into account the influence of a disturbed overlayer in the sample.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2015.05.035