Topological magnons in Cu2OSeO3

DOI

Recently, it was predicted topological nature of the magnetic excitations of Cu2OSeO3. It turned out that the system belongs to the class of topologically non-trivial magnets with the appropriate protected gaps in the bulk magnetic spectrum which are closed approaching the boundaries of the crystal. This magnetic Weyl points are presumably caused by the chiral crystal structure. The theory predicts the appearance of the gaps in R and G points at around 12 and 9 meV respectively. The splittings are of the order of 1 meV. It was additionally found that the presence of the DMI causes the Weyl points to move in the K-space in a complicated manner. Here we propose to compare the theoretical predictions with the neutron spectrum.

Identifier
DOI https://doi.org/10.5286/ISIS.E.RB1910425-1
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/103214887
Provenance
Creator Mr Yevhen Onykiienko; Professor Dmytro Inosov; Dr Yuliia Tymoshenko; Dr Ross Stewart
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 2019-07-04T07:00:00Z
Temporal Coverage End 2019-07-07T20:20:44Z