Open AccessJournal Article
The Rietveld method
TLDR
In this paper, the early days of the Rietveld method are described, along with a retrospective view of its application in various areas of physics, such as X-ray and neutron analysis.Abstract:
Introduction to the Rietveld Method 1. The early days: a retrospective view 2. Mathematical aspects of Rietveld refinement 3. The flow of radiation in a polycrystalline material 4. Data collection strategies: fitting the experiment to the need 5. Background modelling in Rietveld analysis 6. Analytical profile fitting of X-ray powder diffraction profiles in Rietveld analysis 7. Crystal imperfection broadening and peak shape in the Rietveld method 8. Bragg reflection profile shape in X-ray powder diffraction patterns 9. Restraints and constraints in Rietveld refinement 10. Rietveld refinement with time-of-flight powder diffraction data from pulsed neutron sources 11. Combined X-ray and neutron Rietveld refinement 12. Rietveld analysis programs Rietan and Premos and special applications 13. Position - constrained and unconstrained powder-pattern-decomposition methods 14. Ab initio structure solutions with powder diffraction dataread more
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Characteristics of LixNiO2 obtained by chemical delithiation
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Structural change of oxide-ion-conducting lanthanum silicate on heating from 295 to 1073 K
Tomoyuki Iwata,Koichiro Fukuda,Emilie Béchade,Olivier Masson,Isabelle Julien,Eric Champion,Philippe Thomas +6 more
TL;DR: In this article, the apatite-type crystal structures (space group P 6 3 / m ) were refined by the Rietveld method, with the anisotropic displacement parameters being assigned for all atoms.
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Fluorous Metal–Organic Frameworks and Nonporous Coordination Polymers as Low‐κ Dielectrics
Simona Galli,Alessandro Cimino,Joshua F. Ivy,Carlotta Giacobbe,Ravi K. Arvapally,Rebecca Vismara,Stefano Checchia,Mustafa A. Rawshdeh,Christian T. Cardenas,Waleed K. Yaseen,Angelo Maspero,Mohammad A. Omary,Mohammad A. Omary +12 more
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Crystal structure of LaCuOS1−xSex oxychalcogenides
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Factors Controlling the Fluorine Content and the Electrochemical Performance of Spinel Oxyfluoride Cathodes
Wonchang Choi,Arumugam Manthiram +1 more
TL;DR: In this paper, a spinel LiMn 2-y-z Li y M z O 4 - η F η (M = Ti and Ni, 0 ≤ η ≤ 0.29) cathodes were synthesized by firing the cation-substituted L 2y-mz L y Mz O 4 oxide analogs with the fluorinating agent NH 4 HF 2 at 450°C, and it was shown that the amount of fluorine that could be incorporated into the spinel lattice is limited by the Mn valence.