Heat transport study of the spin liquid candidate 1T-TaS2

Abstract

We present the ultra-low-temperature thermal conductivity measurements on single crystals of the prototypical charge-density-wave material 1$T$-TaS${}_2$, which was recently argued to be a candidate for quantum spin liquid. Our experiments show that the residual linear term of thermal conductivity at zero field is essentially zero, within the experimental accuracy. Furthermore, the thermal conductivity is found to be insensitive to the magnetic field up to 9 T. These results clearly demonstrate the absence of itinerant magnetic excitations with fermionic statistics in bulk 1$T$-TaS${}_2$ and, thus, put a strong constraint on the theories of the ground state of this material.

5 pages, 3 figures

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• Gate-tunable Phase Transitions in 1T-TaS${}_2$
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Cited by in corpus (22)

• Experimental identification of quantum spin liquids
• Gapless excitations in the ground state of 1T-TaS${}_2$
• Direct identification of Mott Hubbard band pattern beyond charge density wave superlattice in monolayer 1T-NbSe2
• Survival of itinerant excitations and quantum spin state transitions in YbMgGaO${}_4$ with chemical disorder
• Experimental signatures of quantum and topological states in frustrated magnetism
• Heat Transport in Herbertsmithite: Can a Quantum Spin Liquid Survive Disorder?
• Thermal Transport of Fractionalized Antiferromagnetic and Field Induced States in the Kitaev Material Na${}_2$Co${}_2$TeO${}_6$
• Realization of metallic state in 1T-TaS2 with persisting long-range order of charge density wave
• Spin-liquid insulators can be Landau's Fermi liquids
• Unquantized thermal Hall effect in quantum spin liquids with spinon Fermi surfaces
• Probing quantum spin liquids with a quantum twisting microscope
• $\mathrm{SU}(4)$-Symmetric Quantum Spin-Orbital Liquids on Various Lattices
• Ising-type quantum spin liquid state in PrMgAl${}_{11}$O${}_{19}$
• Electronic Density of States of a $U\left(1\right)$ Quantum Spin Liquid with Spinon Fermi Surface. II. Zeeman Magnetic Field Effects
• Revealing spinons by proximity effect
• Stabilization of antiferromagnetism in 1T-Fe${}_{0.05}$TaS${}_2$
• Interplay of broken symmetry and delocalized excitations in the insulating state of 1$T$-TaS${}_2$
• Long-range spin-orbital order in the spin-orbital SU(2)$\times$SU(2)$\times$U(1) model
• Itinerant and topological excitations in a honeycomb spiral spin liquid candidate
• Topical review: the nature of the ground state and possibility of a quantum spin liquid in 1T metal dichalcogenides
• Resolving the Thermal Paradox: Many-body localization or fractionalization?
• Emergent quantum phenomena in two-dimensional 1T-TaS2