Neutron spectroscopy, entanglement analysis, and simulations provide evidence that KYbSe2 closely approximates a 2D quantum spin liquid. Although KYbSe2 displays magnetic ordering at low temperatures, its magnetic dynamics are dominated by fractionalized excitations that exhibit anomalously large quantum entanglement, indicating that on finite timescales KYbSe2 exhibits quantum spin liquid physics.
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References
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This is a summary of: Scheie, A. O. et al. Proximate spin liquid and fractionalization in the triangular antiferromagnet KYbSe2. Nat. Phys. https://doi.org/10.1038/s41567-023-02259-1 (2023).
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A proximate model material for triangular lattice quantum spin liquids. Nat. Phys. 20, 26–27 (2024). https://doi.org/10.1038/s41567-023-02275-1
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DOI: https://doi.org/10.1038/s41567-023-02275-1
