ISIS Neutron and Muon Source Data Journal

Cation-exchanged layered perovskite oxides

Abstract: Ferroelectric materials (those which exhibit spontaneous and switchable electrical polarizations) have a wide range of applications. However preparing new ferroelectric materials is challenging because they are required to have a non-centrosymmetric crystal structures, which are generally disfavoured on thermodynamic grounds.We have been working of a strategy of introducing ferroelectric behaviour into phases via low-temperature cation exchange reactions. Specifically, we are exploring the cation exchange chemistry of polar Dion-Jacobson and Ruddlesden-Popper oxide phases to see if we can induce ferroelectric behaviour by modifying the collective distortions of their frameworks. We propose to collect high resolution neutron powder diffraction data from these exchanged phases, so we can determine their complex structural distortions, and thus determine the effect of cation exchange.

Principal Investigator: Professor Michael Hayward
Local Contact: Dr Alexandra Gibbs
Experimenter: Mr Subhadip Mallick
Experimenter: Miss ZHEYING XU

DOI: 10.5286/ISIS.E.RB1920267

ISIS Experiment Number: RB1920267

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

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; (2019): Cation-exchanged layered perovskite oxides, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920267

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