Spiral spin-liquid on a honeycomb lattice

Abstract

Spiral spin-liquids are correlated paramagnetic states with degenerate propagation vectors forming a continuous ring or surface in reciprocal space. On the honeycomb lattice, spiral spin-liquids present a novel route to realize emergent fracton excitations, quantum spin liquids, and topological spin textures, yet experimental realizations remain elusive. Here, using neutron scattering, we show that a spiral spin-liquid is realized in the van der Waals honeycomb magnet FeCl${}_3$. A continuous ring of scattering is directly observed, which indicates the emergence of an approximate U(1) symmetry in momentum space. Our work demonstrates that spiral spin-liquids can be achieved in two-dimensional systems and provides a promising platform to study the fracton physics in spiral spin-liquids.

16 pages, 14 figures

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Cited by in corpus (6)

• Spontaneous antiferromagnetic skyrmion/antiskyrmion lattice and spiral spin liquid states in the frustrated triangular lattice
• Low energy structure of spiral spin liquids
• Experimental Evidence for the Spiral Spin Liquid in LiYbO${}_2$
• Self-selecting vapor growth of transition metal halide single crystals
• Helical superfluid in a frustrated honeycomb Bose-Hubbard model
• Stacking-induced magnetic frustration and spiral spin liquid