Spin Wave Dispersion in Magnetic Weyl Semimetal Candidate Co3Sn2S2
Co3Sn2S2 has a highly frustrated kagome lattice structure and is one of several magnetic Weyl semimetal candidates. Recent transport studies have observed large anomalous Hall effect, magnetoresistance, and chiral anomalies consistent with the presence of Weyl fermions, suggesting the presence of topological phenomena. To fully understand the magnetism in Co3Sn2S2, we propose an inelastic neutron scattering experiment to study the spin wave dispersion and determine if there is a spin gap at the Dirac points. Additionally, we will determine if the system can be described well by a Heisenberg Hamiltonian or if additional interactions will be needed to understand the behavior. Our observations will provide new understanding of the mechanisms causing exotic topological phenomena and cast light on potential applications in novel spintronic devices.
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NEUBAUER Kelly; Bourges; HANSEN Ursula Bengaard; IVANOV Alexandre; KLEMM Mason; STEFFENS Paul; Yixi Su and XIE Yaofeng. (2021). Spin Wave Dispersion in Magnetic Weyl Semimetal Candidate Co3Sn2S2. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1630
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