ISIS Neutron and Muon Source Data Journal
This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Phase transitions in non-centrosymmetric Dion-Jacobson Phases
Abstract: Ferroelectric materials - those which exhibit a spontaneous and switchable electrical polarization - have a wide range of applications. However materials which exhibit ferroelectric behaviour are rare because in order to exhibit a spontaneous electrical polarization, materials must adopt a non-centrosymmetric crystal structure.We have been studying a series of layered perovskite phases which adopt non-centrosymmetric structures at room temperature. It is proposed that the non-centrosymmetric structures and resulting ferroelectric behaviour arise due to a novel ‘hybrid improper’ mechanism. In order to confirm this hypothesis we need to determine the structures adopted by these compounds at high temperature, because the nature of the phase transitions between ferroelectric and non-ferroelectric states is characteristic of the mechanism which leads to ferroelectric behaviour.
Public release date: 13 May 2021
Principal Investigator: Professor Michael Hayward
Experimenter: Miss Lun Jin
Local Contact: Dr Alexandra Gibbs
Experimenter: Mr Tong Zhu
DOI: 10.5286/ISIS.E.92919436
Parent DOI: 10.5286/ISIS.E.RB1810073
ISIS Experiment Number: RB1810073
Part Number: 1
Date of Experiment: 10 May 2018
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; (2018): Phase transitions in non-centrosymmetric Dion-Jacobson Phases, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.92919436
