ISIS Neutron and Muon Source Data Journal

Excitation Spectrum of the Topological Spin Order in SrFeO3

Abstract: Spin dynamics in multi-q noncoplanar ordered structures (e.g. skyrmion lattices) is an active topic of research. The cubic perovskite SrFeO3 has a variety of multiple-q magnetic phases including a recently identified 3D topological spin order that is analogous to a skyrmion lattice. This highly symmetric noncoplanar phase on a cubic lattice is characterized by a star of 4 equivalent magnetic propagation vectors pointing along the {111} cubic directions. In contrast to the less symmetric ground-state phase, which forms multiple magnetic domains, the quadruple-q phase does not suffer from magnetic twinning and should result in cleaner inelastic spectra. Here we propose to map out spin-wave excitations in SrFeO3 across the magnetic phase transitions between zero-field phases I, II, and III. The results will help us understand and model the dynamics of topological spin structures.

Principal Investigator: Professor Dmytro Inosov
Experimenter: Dr Yuliia Tymoshenko
Local Contact: Dr Helen Walker
Experimenter: Dr Darren Peets
Experimenter: Mr Yevhen Onykiienko
Experimenter: Mr Nikita Andryushin

DOI: 10.5286/ISIS.E.RB1920064

ISIS Experiment Number: RB1920064

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 Dmytro Inosov et al; (2019): Excitation Spectrum of the Topological Spin Order in SrFeO3, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920064

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