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  Direct observation of the spin-orbit coupling effect in magnetic Weyl semimetal Co3Sn2S2

Liu, D. F., Liu, E. K., Xu, Q. N., Shen, J. L., Li, Y. W., Pei, D., et al. (2022). Direct observation of the spin-orbit coupling effect in magnetic Weyl semimetal Co3Sn2S2. npj Quantum Materials, 7(1): 11, pp. 1-5. doi:10.1038/s41535-021-00392-9.

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 Creators:
Liu, D. F.1, Author
Liu, E. K.1, Author
Xu, Q. N.2, Author              
Shen, J. L.1, Author
Li, Y. W.1, Author
Pei, D.1, Author
Liang, A. J.1, Author
Dudin, P.1, Author
Kim, T. K.1, Author
Cacho, C.1, Author
Xu, Y. F.1, Author
Sun, Y.2, Author              
Yang, L. X.1, Author
Liu, Z. K.1, Author
Felser, C.3, Author              
Parkin, S. S. P.1, Author
Chen, Y. L.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: The spin-orbit coupling (SOC) lifts the band degeneracy that plays a vital role in the search for different topological states, such as topological insulators (TIs) and topological semimetals (TSMs). In TSMs, the SOC can partially gap a degenerate nodal line, leading to the formation of Dirac/Weyl semimetals (DSMs/WSMs). However, such SOC-induced gap structure along the nodal line in TSMs has not yet been systematically investigated experimentally. Here, we report a direct observation of such gap structure in a magnetic WSM Co3Sn2S2 using high-resolution angle-resolved photoemission spectroscopy. Our results not only reveal the existence and importance of the strong SOC effect in the formation of the WSM phase in Co3Sn2S2, but also provide insights for the understanding of its exotic physical properties.

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Language(s): eng - English
 Dates: 2022-01-202022-01-20
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
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Title: npj Quantum Materials
  Other : npj Quantum Mater.
Source Genre: Journal
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Publ. Info: [London] : Nature Publishing Group
Pages: - Volume / Issue: 7 (1) Sequence Number: 11 Start / End Page: 1 - 5 Identifier: ISSN: 2397-4648
CoNE: https://pure.mpg.de/cone/journals/resource/2397-4648