Enabled by recent advances in symmetry and electronic structure, researchers have observed signatures of unconventional threefold degeneracies in tungsten carbide, challenging a longstanding paradigm in nodal semimetals.
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Wieder, B.J. Threes company. Nature Phys 14, 329–330 (2018). https://doi.org/10.1038/s41567-017-0032-5
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DOI: https://doi.org/10.1038/s41567-017-0032-5
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