ISIS Neutron and Muon Source Data Journal

Tracking how the spin cycloid in BFO evolves with electric field and temperature

Abstract: AFM order in BFO was first detected by neutron diffraction and was classified as Type G. However, the spins are not perfectly antiparallel; there is a spatial-modulated spin cycloidal structure with an incommensurate period of 64nm. This proposal aims to answer the following questions:1. How does the cycloid wavelength evolve with temperature field?2. Is there a reorientation of the cycloid direction when the electric field is applied? 3. Is the degeneracy between the different crystallographic orientations of the cycloid vector lifted? 4. Does the tuning of the spin order offer a way to achieve strong magnetoelectric coupling?Answers will be found by performing a GiSANS experiment on a [111] oriented BFO, to measure how the cycloid length scale changes under and applied electric field and temperature.

Principal Investigator: Professor Alan Drew
Experimenter: Mr Carlos Aristizabal
Experimenter: Professor Ted Forgan
Experimenter: Dr Houssny Bouyanfif
Experimenter: Dr Donna Arnold
Experimenter: Dr Anthony Phillips
Experimenter: Professor Sean Langridge
Experimenter: Miss Shuo Han
Local Contact: Dr Sarah Rogers

DOI: 10.5286/ISIS.E.RB1410266

ISIS Experiment Number: RB1410266

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 Alan Drew et al; (2015): Tracking how the spin cycloid in BFO evolves with electric field and temperature, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1410266

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