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International Union of Crystallography, Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 2(70), p. 268-274, 2014

DOI: 10.1107/s2052520613034252

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Monoclinic superstructure in orthorhombic Ce<sub>10</sub>W<sub>22</sub>O<sub>81</sub>from transmission electron microscopy

Journal article published in 2014 by Loïc Patout, Damien Jacob ORCID, Madjid Arab, Carlson Pereira de Souza, Christine Leroux
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

A complex rare-earth tungstate structure, present in a two-phased powder, was solved by electron diffraction, precession and high-resolution electron microscopy. The orthorhombic space groupPbnmand the atomic positions deduced from X-ray diffraction experiments were confirmed for Ce10W22O81. AC2/cmonoclinic superstructure, with cell parametersa= 7.8,b= 36.1,c= 22.2 Å and β = 100.2°, was shown and attributed to a partial oxidation of Ce3+leading to interstitial oxygen ions.