Spinon magnetic resonance of quantum spin liquids

Abstract

We describe electron spin resonance in a quantum spin liquid with significant spin-orbit coupling. We find that the resonance directly probes spinon continuum which makes it an efficient and informative probe of exotic excitations of the spin liquid. Specifically, we consider spinon resonance of three different spinon mean-field Hamiltonians, obtained with the help of projective symmetry group analysis, which model a putative quantum spin liquid state of the triangular rare-earth antiferromagnet YbMgGaO4. The band of absorption is found to be very broad and exhibit strong van Hove singularities of single spinon spectrum as well as pronounced polarization dependence.

14 pages, 9 figures (including supplement)

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Cited by in corpus (6)

• Electron Spin Resonance on the spin-1/2 triangular magnet NaYbS2
• Magnetic field effects on the quantum spin liquid behaviors of NaYbS${}_2$
• Diluting a triangular-lattice spin liquid: Synthesis and characterization of NaYb${}_{1-x}$Lu${}_x$S${}_2$ single crystals
• Electron Spin Resonance of the Interacting Spinon Liquid
• Extracting the spin excitation spectrum of a fermionic system using a quantum processor
• Spin-orbital magnetism in moiré Wigner molecules