ISIS Neutron and Muon Source Data Journal

Diamond Experiment MT20586 "Incommensurate modulation in a multiferroic metal formate perovskite",

Abstract: The metal formate perovskites have structural chemistry as diverse as their inorganic analogues; yet substantial areas of their phase diagrams, including phases with potentially useful functionality, remain unexplored. Using I19 data, we recently observed a low-temperature incommensurately modulated phase in methylammonium manganese formate and solved its structure. This will be the first modulated structure reported in this family and offers a potential novel route to achieving electrical order. Here we seek to measure how the modulation varies with temperature, including any lock-in to a commensurate structure; and to understand the differences between this material and the cobalt analogue, which has quite different low-temperature phase behaviour. Combining single-crystal X-ray and high resolution powder neutron data is a very powerful way to shed light on subtle structural changes.

Principal Investigator: Dr Anthony Phillips
Experimenter: Dr Richard Dixey
Experimenter: Mr Zhengqiang Yang
Experimenter: Dr Dominic Fortes

DOI: 10.5286/ISIS.E.RB1900046

ISIS Experiment Number: RB1900046

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 Anthony Phillips et al; (2018): Diamond Experiment MT20586 "Incommensurate modulation in a multiferroic metal formate perovskite", , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1900046

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