Classical spin liquid or extended critical range in h-YMnO${}_3$?

Abstract

Inelastic neutron experiments on the classical triangular-lattice geometrically frustrated antiferromagnet h-YMnO${}_3$ reveal diffuse, gapless magnetic excitations present both below and far above the ordering temperature, $T_N$. The correlation length of the excitations increases as the temperature approaches zero, bearing strong resemblance to critical scattering. We model the scattering as critical spin-spin correlations in a two-dimensional magnetic ground state, and we speculate that this may provide a general framework to understand features typically attributed to classical spin liquids.

References in corpus (21)

• Quantum Spin Liquids
• Fractionalized excitations in the spin liquid state of a kagomé lattice antiferromagnet
• Quantum Orders and Symmetric Spin Liquids
• A Field Guide to Spin Liquids
• Emergent excitations in a geometrically frustrated magnet
• Long range Neel order in the triangular Heisenberg model
• Continuous excitations of the triangular-lattice quantum spin liquid YbMgGaO4
• Evidence for a spinon Fermi surface in a triangular lattice quantum spin liquid candidate
• Universality of phase transitions of frustrated antiferromagnets
• Dynamical structure factor of triangular-lattice antiferromagnet
• Unconventional spin fluctuations in the hexagonal antiferromagnet YMnO${}_3$
• Spontaneous decays of magneto-elastic excitations in noncollinear antiferromagnet (Y,Lu)MnO3
• Two-temperature scales in the triangular-lattice Heisenberg antiferromagnet
• Hexagonal RMnO${}_3$: a model system for 2D triangular lattice antiferromagnets
• Magnetic excitations of the classical spin liquid MgCr2O4
• Signature of a Z_2 vortex in the dynamical correlations of the triangular-lattice Heisenberg antiferromagnet
• Magnetic ground state and magnon-phonon interaction in multiferroic h-YMnO${}_3$
• Magnetism in Geometrically Frustrated YMnO3 Under Hydrostatic Pressure Studied with Implanted Muons
• A Prismatic Analyser concept for Neutron Spectrometers
• Spin fluctuations in the stacked-triangular antiferromagnet YMnO3
• Development of spin correlations in the geometrically frustrated triangular-lattice Heisenberg antiferromagnet CuCrO2

Cited by in corpus (6)

• Excitations in the ordered and paramagnetic states of honeycomb magnet Na2Co2TeO6
• MJOLNIR: A Software Package for Multiplexing Neutron Spectrometers
• Frustrated charge density wave and quasi-long-range bond-orientational order in the magnetic kagome FeGe
• Extending MIEZE spectroscopy towards thermal wavelengths
• Characterizing the diffuse continuum excitations in the classical spin liquid $h$-YMnO${}_3$
• Refined spin Hamiltonian on the Cairo pentagonal lattice of Bi2Fe4O9