EDP2PDF: a computer program for extracting a pair distribution function from an electron diffraction pattern for the structural analysis of materials

Liu, H.; Nomoto, K.; Ceguerra, A.V.; Kruzic, J.J.; Cairney, J.; Ringer, S.P.

doi:10.1107/S1600576723004053

Journal of Applied Crystallography Journal of Applied
Crystallography

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Figure 12
An investigation of the ellipticity of an EDP using a least-squares fitting algorithm. (a) The experimental EDP of an Au sample showing horizontal elongation. (b) Azimuthal spreading of the region of interest, highlighted in the circular band in panel (a). The least-squares fit gives a distortion direction close to 180°, which is identical to the observed horizontal direction. (c) The recreated EDP pattern after correction of the detected distortion. (d) Azimuthal spreading of the region of interest highlighted in the circular band in panel (c), showing that the ellipticity is nearly cancelled.

JOURNAL OF
APPLIED
CRYSTALLOGRAPHY

ISSN: 1600-5767

Volume 56| Part 3| June 2023| Pages 889-902

https://doi.org/10.1107/S1600576723004053

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