%0 Journal Article
%A Harouna-Mayer, Sani
%A Tao, Songsheng
%A Gong, ZiZhou
%A von Zimmermann, Martin
%A Koziej, Dorota
%A Dippel, Ann-Christin
%A Billinge, Simon J. L..
%T Real-space texture and pole-figure analysis using the 3D pair distribution function on a platinum thin film
%J IUCrJ
%V 9
%N 5
%@ 2052-2525
%C Chester
%M PUBDB-2022-06641
%P 594 - 603
%D 2022
%X An approach is described for studying texture in nanostructured materials. The approach implements the real-space texture pair distribution function (PDF), txPDF, laid out by Gong </td><td width="150">
%X  Billinge (2018[Gong, Z. </td><td width="150">
%X  Billinge, S. J. L. (2018). arXiv:1805.10342 [cond-mat].]). arXiv:1805.10342 [cond-mat]. It is demonstrated on a fiber-textured polycrystalline Pt thin film. The approach uses 3D PDF methods to reconstruct the orientation distribution function of the powder crystallites from a set of diffraction patterns, taken at different tilt angles of the substrate with respect to the incident beam, directly from the 3D PDF of the sample. A real-space equivalent of the reciprocal-space pole figure is defined in terms of interatomic vectors in the PDF and computed for various interatomic vectors in the Pt film. Furthermore, it is shown how a valid isotropic PDF may be obtained from a weighted average over the tilt series, including the measurement conditions for the best approximant to the isotropic PDF from a single exposure, which for the case of the fiber-textured film was in a nearly grazing incidence orientation of ∼10°. Finally, an open-source Python software package, FouriGUI, is described that may be used to help in studies of texture from 3D reciprocal-space data, and indeed for Fourier transforming and visualizing 3D PDF data in general.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ 36071809
%U <Go to ISI:>//WOS:000852551800009
%R 10.1107/S2052252522006674
%U https://bib-pubdb1.desy.de/record/485339