ISIS Neutron and Muon Source Data Journal

Topochemical fluorination of n = 2 Ruddlesden-Popper phases

Abstract: Low-temperature fluorination of A3B2O7 layered oxides allows the preparation of A3B2O7F2 oxide-fluorides in ‘topochemical’ reactions that conserve the crystal structure of the original material. We are interested in materials prepared in this way for two reasons. Firstly the insertion of fluorine oxidizes materials, lowering their electron count and modifying the electronic and magnetic behaviour of the phase. Secondly the insertion of fluorine drives small distortions to the structure of the host phase which can break the inversion symmetry of the crystal structure and induce ferroelectric behaviour – a highly desirable physical property. We propose to collect high-resolution neutron powder diffraction data from a number of topochemically fluorinated phases to study the effect of fluorine insertion on both the crystal and magnetic structures of these materials.

Principal Investigator: Professor Michael Hayward
Experimenter: Mr Nijat Hasanli
Experimenter: Miss Lun Jin
Experimenter: Mr Jacob Page
Local Contact: Dr Alexandra Gibbs
Experimenter: Miss Ronghuan Zhang

DOI: 10.5286/ISIS.E.RB1610095

ISIS Experiment Number: RB1610095

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Michael Hayward et al; (2016): Topochemical fluorination of n = 2 Ruddlesden-Popper phases, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610095

Data is released under the CC-BY-4.0 license.