ISIS Neutron and Muon Source Data Journal

Spin excitations in the first magnetic Weyl semimetal Co3Sn2S2

Abstract: In contrast to the extensively verified Weyl semimetals with broken inversion symmetry, magnetic Weyl semimetals, which break time reversal symmetry, were only theoretically proposed (e.g. Y2Ir2O7, HgCr2Se4) , but none of them has been experimentally confirmed yet. Very recently, a new magnetic Weyl semimetal was proposed in the layered Kagomé-lattice Co3Sn2S2 with Weyl points near the Fermi energy, and a ferromagnetic transition around TC= 175 K in the half-metal state. Here we propose to do inelastic neutron scattering experiments on this first experimentally verified magnetic Weyl semimetal at MERLIN. The aim of this experiment is to search anomalous spin excitations related to the topological physics and spin-orbital coupling, i.e. magnetic monopoles or magneto-phonons, or renormalized spin excitations by the Weyl points in the ferromagnetic state.

Principal Investigator: Dr Hui-Qian Luo
Experimenter: Dr Enke Liu
Experimenter: Miss Chang Liu
Local Contact: Dr Devashi Adroja
Experimenter: Dr Xiaoyan Ma
Experimenter: Mr Wenshan Hong

DOI: 10.5286/ISIS.E.RB1820002

ISIS Experiment Number: RB1820002

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Hui-Qian Luo et al; (2019): Spin excitations in the first magnetic Weyl semimetal Co3Sn2S2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1820002

Data is released under the CC-BY-4.0 license.