ISIS Neutron and Muon Source Data Journal

An ALC study of the organic ferroelectrics TTF-CA and TTF-BA

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. We plan to use ALC studies of this system and the bromine analogue TTF-BA (Tc=50 K) to provide local probe information aimed at better understanding the nature of the electronic state both above and below the transition and the 1D dynamics near Tc.

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

DOI: 10.5286/ISIS.E.RB1610497

ISIS Experiment Number: RB1610497

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): An ALC study of the organic ferroelectrics TTF-CA and TTF-BA, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610497

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