Magnetic order in $\alpha$-RuCl${}_3$: a honeycomb lattice quantum magnet with strong spin-orbit coupling

Abstract

We report magnetic and thermodynamic properties of single crystal $\alpha$-RuCl${}_3$, in which the Ru${}^{3+}$ ($4d^5$) ion is in its low spin state and forms a honeycomb lattice. Two features are observed in both magnetic susceptibility and specific heat data; a sharp peak at 7~K and a broad hump near 10-15K. In addition, we observe a metamagnetic transition between 5~T and 10~T. Our neutron diffraction study of single crystal samples confirms that the low temperature peak in the specific heat is associated with a magnetic order with unit cell doubling along the honeycomb (100) direction, which is consistent with zigzag order, one of the types of magnetic order predicted within the framework of the Kitaev-Heisenberg model.

6 pages, 4 figures

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Cited by in corpus (183)

• Models and Materials for Generalized Kitaev Magnetism
• Kitaev magnetism in honeycomb RuCl3 with intermediate spin-orbit coupling
• Experimental identification of quantum spin liquids
• Spin-wave excitations evidencing the Kitaev interaction in single crystalline $\alpha$-RuCl${}_3$
• 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
• Magnetization processes of zigzag states on the honeycomb lattice: Identifying spin models for $\alpha$-RuCl${}_3$ and Na${}_2$IrO${}_3$
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• Quantum-centric Supercomputing for Materials Science: A Perspective on Challenges and Future Directions
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• Topological magnons for thermal Hall transport in frustrated magnets with bond-dependent interactions
• Dominant Kitaev interactions in the honeycomb materials Na${}_3$Co${}_2$SbO${}_6$ and Na${}_2$Co${}_2$TeO${}_6$
• A magnetic continuum observed by terahertz spectroscopy in a quantum spin liquid candidate BaCo${}_2$(AsO${}_4$)${}_2$
• Beyond Kitaev physics in strong spin-orbit coupled magnets
• Identification of Magnetic Interactions and High-field Quantum Spin Liquid in $\alpha$-RuCl${}_3$
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• Magnetic ground state of the Kitaev Na${}_2$Co${}_2$TeO${}_6$ spin liquid candidate
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• Variational study of the Kitaev-Heisenberg-Gamma model
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• Phonon Dynamics in the Generalized Kitaev Spin Liquid
• Weak-coupling to strong-coupling quantum criticality crossover in a Kitaev quantum spin liquid $\alpha$-RuCl${}_3$
• A new inelastic neutron spectrometer HODACA
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• Interplay of Kitaev Interaction and Off-diagonal Exchanges: Exotic Phases and Quantum Phase Diagrams
• Signatures of a gapless quantum spin liquid in the Kitaev material Na${}_3$Co${}_{2-x}$Zn${}_x$SbO${}_6$
• The nature of low-temperature spin-freezing in frustrated Kitaev magnets
• Phase diagram for Hole-Doped Kitaev System on the Honeycomb Lattice
• Complex orders and chirality in the classical Kitaev-$\Gamma$ model
• Interplay of frustration and quantum fluctuations in a spin-1/2 anisotropic square lattice
• Static and dynamical magnetic properties of the extended Kitaev-Heisenberg model with spin vacancies
• Intermediate phases in $\alpha$-RuCl${}_3$ under in-plane magnetic field via interlayer spin interactions
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• Thermal decomposition of the Kitaev material $\alpha$-RuCl${}_3$ and its influence on low-temperature behavior
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• Evolution of crystal field and intraionic interactions in the ilmenite $A$IrO${}_3$ ($A$ = Mg, Zn, Cd) and hyperhoneycomb $\beta$-ZnIrO${}_3$
• Stability of ordered and disordered phases in the Heisenberg-Kitaev model in a magnetic field
• Disorder, Low-Energy Excitations, and Topology in the Kitaev Spin Liquid
• Low-temperature spin dynamics and absence of magnetic order in layered $\alpha$-RuI${}_3$
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• Spin disorder state induced by Mg${}^{2+}$ doping in a Kitaev material Na${}_3$Co${}_2$SbO${}_6$
• Susceptibility anisotropy and absence of ferroelectric order in the Kitaev spin liquid candidate Na${}_2$Co${}_2$TeO${}_6$
• Strategy to Extract Kitaev Interaction using Symmetry in Honeycomb Mott Insulators
• Tuning the Chern number of Kitaev quantum spin liquid
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• The field-angle anisotropy of proximate Kitaev systems under an in-plane magnetic field
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