Magnetization-controlled band-sticking of magnons at the zone boundary of field-polarized MnSi
Non-symmorphic symmetry in combination with time-reversal symmetry conspire to act effectively as a mirror symmetry that is predicted to generate a generic sticking of the band structure of crystals, i.e., degenerate crossing points where band gaps would expected. We propose to search for band-sticking in the magnon-spectrum of the field-polarized phase of MnSi at the Brillouin zone boundary, where we recently observed related band sticking in the electronic bands. As the magnetization breaks time-reversal symmetry, the band sticking is, however, predicted to exist on the surfaces of the Brillouin zone perpendicular to the direction of the magnetization only. Evidence for the magnon-band sticking would establish the generic origin of the band-sticking in the electronic structure and, at the same time provide a new perspective of the properties of a wide range of isostructural siblings such as FeSi or CoSi, crystallizing in the P213 space group. In total we ask for six days of beamtime at ThALES.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
Tobias WEBER; BAUER Andreas; PFLEIDERER Christian and STEFFENS Paul. (2021). Magnetization-controlled band-sticking of magnons at the zone boundary of field-polarized MnSi. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1734
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.