Paramagnetic excitations in the topological Weyl semimetal Co3Sn2S2

DOI

In a magnetic Weyl semimetal (WSM) with broken time-reversal symmetry, large intrinsic anomalous Hall effect is expected if the Weyl nodes are close to Fermi energy, which mostly depends on the orbital magnetism from itinerant electrons. Recently, a layered Kagomé-lattice half-metal Co3Sn2S2 with Weyl points near Fermi energy and a ferromagnetic transition around 175 K, is discovered to be an ideal ferromagnetic WSM. Our previous results on triple-axis spectrometer and time-of-flight spectrometer Merlin (RB1820002) helped us clear the three-dimensional spin exchange coupling and its spectrum of spin waves. Here we propose to do more temperature dependent measurements on the same sample measured on Merlin. The aim is to further understand the temperature evolution of the spin excitations in Co3Sn2S2 and its connection with the non-monotonic temperature dependence of anomalous Hall angle.

Identifier
DOI https://doi.org/10.5286/ISIS.E.RB1920310-1
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/98575446
Provenance
Creator Dr Enke Liu; Dr Hui-Qian Luo; Miss CHANG LIU; Dr Devashi Adroja
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 2019-10-10T07:30:00Z
Temporal Coverage End 2019-10-15T08:06:12Z