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A continuous confinement-deconfinement transition in a triangular quantum magnet.
Science Advances · · Journal Article · Open access
Hosoi, Park + more
Abstract ↗AI summary
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A continuous confinement-deconfinement transition between bosonic magnons and fermionic spinons is observed in the triangular-lattice antiferromagnet thallium ytterbium disulfide.
- Why it matters: Understanding such transitions is crucial for advancing knowledge of quantum magnetism and fractionalized excitations, which are key to exploring novel quantum phases and materials.
- What they did: Researchers applied a c-axis field to suppress antiferromagnetic order below T N ≈ 0.53 K, inducing a gapless quantum spin liquid with a spinon Fermi surface, evidenced by thermal conductivity, susceptibility, and NMR measurements.
- The result: The findings suggest a continuous confinement-deconfinement transition governed by fractionalized excitations beyond the Ginzburg-Landau paradigm, with enhanced scattering rates near the transition point.
The findingWhy it mattersWhat they didThe result
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