Significant thermal Hall effect in the 3$d$ cobalt Kitaev system $N{a}_{2}C{o}_{2}Te{O}_6$

Abstract

Kitaev physics has recently attracted attention in condensed matter for its anticipated novel quantum spin liquid state. The thermal transport measurement is crucial for probing the novel features of charge-neutral quasiparticles. In this letter, we report a significant thermal Hall effect in $N{a}_{2}C{o}_{2}Te{O}_6$ (NCTO), a Kitaev quantum spin liquid candidate, when the magnetic field is applied along the out-of-plane direction of the honeycomb plane. The thermal conductivity (${\kappa }_{xx}$) and thermal Hall conductivity (${\kappa }_{xy}$) in NCTO reveal distinct magnetic field dependences below and above the Neel temperature ($T_N$) of 27 K. For $T>T_N$, ${\kappa }_{xx}$ has a monotonic decrease in the field dependence, while ${\kappa }_{xy}$ persists up to $T^{\ast }$ = 150 K. On the other hand, both ${\kappa }_{xx}$ and ${\kappa }_{xy}$ exhibit complex field dependence for $T<T_N$.

13 pages, 3 figures, accepted for publication in Physical Review B

References in corpus (22)

• Mott Insulators in the Strong Spin-Orbit Coupling Limit: From Heisenberg to a Quantum Compass and Kitaev Models
• $\alpha$-RuCl3: a Spin-Orbit Assisted Mott Insulator on a Honeycomb Lattice
• Observation of the Magnon Hall Effect
• Theoretical prediction of rotating magnon wavepacket in ferromagnets
• Pseudospin exchange interactions in d^7 cobalt compounds: Possible realization of the Kitaev model
• Kitaev-Heisenberg Hamiltonian for High-Spin $d^7$ Mott Insulators
• Anisotropic Ru3+ 4d5 magnetism in the alpha-RuCl3 honeycomb system: susceptibility, specific heat and Zero field NMR
• Robustness of the thermal Hall effect close to half-quantization in a field-induced spin liquid state
• Giant thermal Hall conductivity from neutral excitations in the pseudogap phase of cuprates
• Microscopic mechanism for higher-spin Kitaev model
• Kitaev interactions in the Co honeycomb antiferromagnets Na${}_3$Co${}_2$SbO${}_6$ and Na${}_2$Co${}_2$TeO${}_6$
• Magnetic properties of the honeycomb oxide Na${}_2$Co${}_2$TeO${}_6$
• Thermal Hall Effect of Spins in a Paramagnet
• Evidence of a Phonon Hall Effect in the Kitaev Spin Liquid Candidate $\alpha$-RuCl${}_3$
• Emergence of nontrivial magnetic excitations in a spin liquid state of kagome volborthite
• Anomalous Thermal Hall Effect in an Insulating van der Waals Magnet VI3
• Berry curvature in magnon-phonon hybrid systems
• Static and dynamic magnetic properties of honeycomb lattice antiferromagnets Na${}_2{M}_2$TeO${}_6$, $M$ = Co and Ni
• Spin-orbital entangled state and realization of Kitaev physics in 3d cobalt compounds: a progress report
• Towards Kitaev Spin Liquid in 3d Transition Metal Compounds
• Giant thermal magnetoconductivity in CrCl${}_3$ and a general model for spin-phonon scattering
• Sizeable suppression of thermal Hall effect upon isotopic substitution in strontium titanate

Cited by in corpus (23)

• Beyond Kitaev physics in strong spin-orbit coupled magnets
• Magnetic ground state of the Kitaev Na${}_2$Co${}_2$TeO${}_6$ spin liquid candidate
• Non-Kitaev vs. Kitaev Honeycomb Cobaltates
• Triple-q order in Na${}_2$Co${}_2$TeO${}_6$ from proximity to hidden-SU(2)-symmetric point
• Planar Thermal Hall Effects in Kitaev Spin Liquid Candidate Na2Co2TeO6
• Thermal Transport of Fractionalized Antiferromagnetic and Field Induced States in the Kitaev Material Na${}_2$Co${}_2$TeO${}_6$
• Quantum Phases in the Honeycomb-Lattice $J_1$--$J_3$ Ferro-Antiferromagnetic Model
• Spin-phonon scattering-induced low thermal conductivity in a van der Waals layered ferromagnet Cr${}_2$Si${}_2$Te${}_6$
• Thermal Hall effects due to topological spin fluctuations in YMnO${}_3$
• Proximate Dirac spin liquid in honeycomb lattice $J_1$-$J_3$ XXZ model: Numerical study and application to cobaltates
• Phononic-magnetic dichotomy of the thermal Hall effect in the Kitaev-Heisenberg candidate material Na${}_2$Co${}_2$TeO${}_6$
• Spin vestigial orders in extended Heisenberg-Kitaev models near hidden SU(2) points: Application to Na${}_2$Co${}_2$TeO${}_6$
• Magnon interactions in the quantum paramagnetic phase of CoNb${}_2$O${}_6$
• Field and Polarization Dependent Quantum Spin Dynamics in Honeycomb Magnet Na${}_2$Co${}_2$TeO${}_6$: Magnetic Excitations and Continuum
• Ferrimagnetism from triple-q order in Na${}_2$Co${}_2$TeO${}_6$
• Planar thermal Hall effect from phonons in cuprates
• Exchange striction induced thermal Hall effect in van der Waals antiferromagnet MnPS${}_3$
• Ferrimagnetism from quantum fluctuations in Kitaev materials
• Upper branch thermal Hall effect in quantum paramagnets
• Field-Angle Dependence of Phonon Thermal Hall Effect in Na2X2TeO6 (X = Co, Zn)
• Demystifying quantum escapism on the honeycomb lattice
• Dominant Kitaev Interaction and Field-induced Quantum Disordered Phase in the Cobaltate Na${}_2$Co${}_2$TeO${}_6$
• Direct probe of magnetic field effects on phonons by ultrasound propagation in a quasi-two-dimensional honeycomb magnet Na${}_2$Co${}_2$TeO${}_6$