Speaker
Michal Stekiel
(Technische Universität München)
Description
We report a combined experimental and theoretical study of zone-boundary magnons in Cu2OSeO3 under magnetic field. High-resolution data were recorded at the triple-axis spectrometers Thales and IN8 at the ILL. As our main result we found a strong magnetic-field dependence of the zone-boundary magnons. We discuss our results in terms of theoretical modelling elucidating putative band-sticking [1] and topological nodal planes [2] expected for the non-symmorphic crystal structure of Cu2OSeO3.
[1] C. Herring, Phys. Rev. 50, 361 (1937).
[2] M. A. Wilde, et al., Nature 594, 374 (2021).
Primary author
Tobias Weber
(Institut Laue-Langevin (ILL), Grenoble, France)
Co-authors
Mr
Niclas Heinsdorf
Michal Stekiel
(Technische Universität München)
Andreas Bauer
(Technische Universität München)
Dr
Marc Wilde
Dr
Andreas Schnyder
Christian Pfleiderer
