Excitation Spectrum of the Topological Spin Order in SrFeO3

DOI

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.

Identifier
DOI https://doi.org/10.5286/ISIS.E.RB1920064-2
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/105599438
Provenance
Creator Dr Yuliia Tymoshenko; Dr Darren Peets; Mr Yevhen Onykiienko; Professor Dmytro Inosov; Dr Helen Walker; Mr Nikita Andryushin
Publisher ISIS Neutron and Muon Source
Publication Year 2022
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Natural Sciences; Physics
Temporal Coverage Begin 2019-10-23T07:30:00Z
Temporal Coverage End 2019-11-14T14:36:04Z