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Precise Determination of the Energy-Dependent X-Ray Diffraction Phases and the Site-Specific Short-Range Order in Yba2Cu3O6.8 Using DAFS

Published

Author(s)

Charles E. Bouldin, H Stragier, Bruce Ravel, L B. Sorensen

Abstract

We have used a self-comsistent Kramers-Kr nig analysis of the diffraction anomalous fine structure (DAFS) signals to precisely determine the phase of a series of (00L) Bragg reflections in Yba2Cu3O6.8. Our method is a new solution to the crystallographic phase problem. We show that our new method gives very accurate phase determinations ( 2 degrees}), and also simultaneously provides very high quality site-separated short-range order information.
Citation
Physical Review Letters

Keywords

DAFS, diffraction, EXAFS, phase problem, x-ray

Citation

Bouldin, C. , Stragier, H. , Ravel, B. and Sorensen, L. (2021), Precise Determination of the Energy-Dependent X-Ray Diffraction Phases and the Site-Specific Short-Range Order in Yba<sub>2</sub>Cu<sub>3</sub>O<sub>6.8</sub> Using DAFS, Physical Review Letters (Accessed April 19, 2024)
Created October 12, 2021