ISIS Neutron and Muon Source Data Journal

Multiferroic properties of organic ferroelectrics revealed using muons

Abstract: The study of organic ferroelectrics based on mixed-stack charge-transfer salts is currently a rapidly developing research field. These materials attract interest as highly tailorable ferroelectrics whose dielectric properties include a strong contribution from an electronic charge transfer mechanism that operates alongside the more conventional ionic displacement mechanism. The prototype for this type of system is TTF-CA which combines the electron donor molecule TTF with the electron acceptor molecule p-chloranil (CA). The ferroelectric transition is at Tc=81 K and is accompanied by a neutral-ionic transition and a dimerisation of the chain. Our ongoing muon studies have revealed a wealth of information on this system and have identified a hidden magnetic character to this ferroelectric transition, consistent with previous predictions of it having an underlying multiferroic nature.

Principal Investigator: Dr Francis Pratt
Experimenter: Dr Isao Watanabe
Experimenter: Dr Norimichi Kojima
Experimenter: Dr Adam Berlie

DOI: 10.5286/ISIS.E.RB1710471

ISIS Experiment Number: RB1710471

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:
Dr Francis Pratt et al; (2016): Multiferroic properties of organic ferroelectrics revealed using muons, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1710471

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