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Symmetry and the Role of the Anion Sublattice in Aurivillius Oxyfluoride Bi2TiO4F2

Giddings, Andrew T. and Scott, Euan A. S. and Stennett, Martin C. and Apperley, David C. and Greaves, Colin and Hyatt, Neil C. and McCabe, Emma E. (2021) 'Symmetry and the Role of the Anion Sublattice in Aurivillius Oxyfluoride Bi2TiO4F2.', Inorganic chemistry., 60 (18). pp. 14105-14115.


The photocatalytic and dielectric behaviors of Aurivillius oxyfluorides such as Bi2TiO4F2 depend sensitively on their crystal structure and symmetry but these are not fully understood. Our experimental work combined with symmetry analysis demonstrates the factors that influence anion order and how this might be tuned to break inversion symmetry. We explore an experimental approach to explore anion order, which combines Rietveld analysis with strain analysis.

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Publisher statement:© 2021 The Authors. Published by American Chemical Society.
Date accepted:No date available
Date deposited:03 September 2021
Date of first online publication:01 September 2021
Date first made open access:03 September 2021

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