Band-sticking of phonons at the zone boundary in MnSi
Non-symmorphic symmetry in combination with time-reversal symmetry conspire to act effectively as a mirror symmetry that is predicted to generate so-called 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 phonon-spectrum of MnSi at the Brillouin zone boundary, where we recently observed related band sticking in the electronic bands. Evidence for the phonon-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 four days of beamtime at IN8.
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The recommended format for citing this dataset in a research publication is in the following format:
Tobias WEBER; BAUER Andreas; PFLEIDERER Christian; PIOVANO Andrea and STEKIEL Michal. (2021). Band-sticking of phonons at the zone boundary in MnSi. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-01-562
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